because he is very old
Correction:
Draco Malfoy was never an owner of the elder wand physically but he was a master of the wand. Near the end of the sixth book, The Half-Blood Prince, when Harry and Dumbledore returned form retrieving a Horcrux in the cave. When they returned to Hogwarts, Madame Rosemerta informed them that the Dark Mark had been conjured over the Astronomy Tower.
While Dumbledore was up in the tower he was surrounded by Death Eaters and student Draco Malfoy who was supposed to kill Dumbledore. Draco had dissarmed Dumbledore who was the current owner of the Elder's Wand, by doing this Draco had become a Master of the Elder Wand without his knowledge. Dumbledore was then killed by Snape and the Elder Wand wand was burried with him in his tomb.
Later in the series Harry Potter overpowers Draco, becoming the Master of the wand without Voldemort knowing, who had stolen the wand and killed Snape assuming he was the true master when really it was Harry.
Harry used the Hawthorn wand that was previously Draco Malfoy's. It went like this:In order to truly own the Elder wand, a wizard would have to take the wand of the current master against their wishes. Albus Dumbledore was the true master of the Elder wand. Draco Malfoy became the next true owner when he disarmed Albus Dumbledore right before his death. However, the Elder wand was buried with Dumbledore. Draco never knew he was the new master. Later, Harry took Draco's Hawthorn wand while he was escaping Malfoy Manor. Since Malfoy was the current master of the Elder wand, this passed the Elder wand's ownership on to Harry. In the meantime, Voldemort broke into Dumbledore's tomb and stole the Elder wand. Voldemort thought that Snape was the new master, as he had killed Dumbledore, not realizing that Draco had disarmed Dumbledore. Voldemort killed Snape and believed himself to be the new Elder wand master. When it came down to the final duel in the Great Hall, Voldemort used the Elder wand that Harry was now master of. Voldemort cast an Avada Kedavra curse at Harry. Harry cast an Expelliarmus spell. Since Harry was the master of the wand Voldemort was using, the Elder Wand would not kill its true master, therefore, Voldemort's Avada Kedavra rebounded off of the Expelliarmus and killed him.
Dumbledore was the master of Elder Wand until he was disarmed by Draco Malfoy at the Astronomy Tower. Malfoy himself did not know that he was the true master of Elder Wand. In part 7 when Harry, Hermoine and Ron were captured by snatchers and brought to Malfoy Tower Harry Potter disarmed Draco and becoming the master of Elder Wand. So, Harry Potter remained the true master of Elder Wand in the end.
He was. (SEE Related Questions below for more info)
Malfoy never held or owned the Elder Wand. He was the Master of the Elder Wand because he had disarmed Dumbledore, who was the owner of the Elder Wand. Harry later disarmed Malfoy, so he became the Master of the Elder Wand.
He uses Hermione's for a little, and then forcibly takes Draco Malfoy's. Later, he uses the Elder Wand (which he is master of) to repair his broken one.
Harry used the Hawthorn wand that was previously Draco Malfoy's. It went like this:In order to truly own the Elder wand, a wizard would have to take the wand of the current master against their wishes. Albus Dumbledore was the true master of the Elder wand. Draco Malfoy became the next true owner when he disarmed Albus Dumbledore right before his death. However, the Elder wand was buried with Dumbledore. Draco never knew he was the new master. Later, Harry took Draco's Hawthorn wand while he was escaping Malfoy Manor. Since Malfoy was the current master of the Elder wand, this passed the Elder wand's ownership on to Harry. In the meantime, Voldemort broke into Dumbledore's tomb and stole the Elder wand. Voldemort thought that Snape was the new master, as he had killed Dumbledore, not realizing that Draco had disarmed Dumbledore. Voldemort killed Snape and believed himself to be the new Elder wand master. When it came down to the final duel in the Great Hall, Voldemort used the Elder wand that Harry was now master of. Voldemort cast an Avada Kedavra curse at Harry. Harry cast an Expelliarmus spell. Since Harry was the master of the wand Voldemort was using, the Elder Wand would not kill its true master, therefore, Voldemort's Avada Kedavra rebounded off of the Expelliarmus and killed him.
Dumbledore was the master of Elder Wand until he was disarmed by Draco Malfoy at the Astronomy Tower. Malfoy himself did not know that he was the true master of Elder Wand. In part 7 when Harry, Hermoine and Ron were captured by snatchers and brought to Malfoy Tower Harry Potter disarmed Draco and becoming the master of Elder Wand. So, Harry Potter remained the true master of Elder Wand in the end.
Actually, Dumbledore didn't intend on Harry getting the Elder Wand. As said in "Harry Potter and the Deathly Hallows", the only way you become the master of the wand is either you disarm the master and/or, you kill them. So when Draco disarmed Dumbledore in the sixth book that made Draco the master. In the seventh book, at Malfoy Manor, Harry disarmed Draco by taking his wand, making him the master of the Elder Wand.
He was. (SEE Related Questions below for more info)
Malfoy never held or owned the Elder Wand. He was the Master of the Elder Wand because he had disarmed Dumbledore, who was the owner of the Elder Wand. Harry later disarmed Malfoy, so he became the Master of the Elder Wand.
Harry stole three wands from Draco Malfoy's hands. One of these wands belonged to Malfoy himself and in stealing them Harry became the master of the elder wand.
He uses Hermione's for a little, and then forcibly takes Draco Malfoy's. Later, he uses the Elder Wand (which he is master of) to repair his broken one.
Draco Malfoy. He became the master after disarming Dumbledore shortly before his death. Draco himself never actually touched the wand and lost ownership before he even knew he had it. The wand was buried with Dumbledore until it was stolen from his grave by Voldemort. At the same time, Harry stole Draco's wand from his hand and (unknowingly) became the master.
Draco was the actual master of the elder wand because Dumbledore's death was already planned, so when Snape killed him, it wasn't actually a takeover of the wand. Because Draco was the last to disarm Dumbledore, or 'take' his wand, it recognized Draco as it's master. This is how Voldemort was ultimately killed, because Harry was using Draco's original wand. The elder wand recognized the wand as its master's, so Voldemort's killing curse was turned back upon him. However, Draco never actually had the Elder Wand in his possession. He never even knew he was the master until Harry revealed it.
He takes it from voldemort Dumbledore had been master of the Elder Wand since 1945. When Draco Malfoy disarmed Dumbledore at the top of the Astronomy tower at Hogwarts, before his death, he earned the wand's allegiance (Draco didn't realize this). The wand was then buried with Dumbledore. When Harry was captured by Snatchers in the Deathly Hallows, he wrestled Draco Malfoy's wand from him before Disapparating, and the Elder Wand switched its allegiance to Harry. The next morning, Voldemort broke into Dumbledore's tomb and took the Elder Wand for himself. During the Battle of Hogwarts, Harry realizes he is the true master of the Elder Wand and in the final battle against Voldemort, he uses Expelliarmus to disarm the Dark Lord. Voldemort's killing curse rebounds on him and kills him, because the Elder Wand cannot kill its true master, Harry.
Albus Dumbledore defeated Gellert Grindlewald and became the owner of the Elder Wand. Draco Malfoy disarmed Albus Dumbledore in Harry Potter and the Half-Blood Prince which meant that Draco was recognised as the new owner of the wand. The only person who knew this was Dumbledore, who then died. At Malfoy Manor, Harry ran past Draco and pulled several wands out of his hand (making him the master of all of them) one of which was Draco's. Thus Harry was now the master of the Elder Wand without knowing it. Voldemort stole the Elder Wand from Dumbledore's tomb and thought that because he had taken it from him, he would be the master. But when he realized that it didn't work as well as it could for him he ordered his snake to kill Severus Snape who he thought was the true master. When Voldemort challenged Harry with the Elder Wand, it knew it could not kill it's own master so Harry's disarming spell worked and Harry caught the Elder Wand. Harry then decided that he didn't want the Elder Wand because it caused to much trouble, instead he repaired his old wand.
On the night that Dumbledore was killed Harry was forced to watch. Dumbledore had used his last few second to freeze Harry so he could not intervene instead of protecting himself. Draco entered the tower and immediately disarmed Dumbledore. At that point, Draco became the owner of the Elder Wand. The Elder Wand views whoever kills or disarms its previous master as its new master. In essence, it's like the wand no longer sees its former master as worthy of it if they can no longer maintain ownership of it which is how Draco became the master. Harry learns this while talking to Ollivander who explained to him that the wand Harry removed from Malfoy in Malfoy Manor was his former wand; hence he had received the allegiance of a new wand. Harry didn't realise at first that Draco was the Elder Wand. Harry only realised after Voldemort killed Snape, believing him to be the master, but the wand still didn't work properly for him because it didn't kill Harry. Harry remembers that Draco disarmed Dumbledore on the Astronomy Tower. This inevitably lead to Harry realising that through him removing Malfoy's wand by force (by physically taking it from his hand), that the Elder Wand saw him as his new master.