When they reach 13 and above. So when you play DotA you will get addicted to it easily.
In order to play Dota without Warcraft 3, you would have to buy Dota 2 through the Steam store run by the publisher Valve. You can play a free, albeit different version of Dota by downloading League of Legends. While not the same mechanics as Dota, League of Legends follows the same structure and is influenced quite heavily by Dota.
Defense of the Ancients (DotA) can be played with Mac OS X.
we need the geeks to do it... support them... let them break the android tablet that we could play dota. waiting for that...
Yes, DotA is free to play. However, you'll need to have Warcraft III: Frozen Throne installed before you are able to play the game. This is because DotA is a user-made map for Frozen Throne.
Yes.
some
DOTA
Yes.
by searching youjizz.com or spankwire.com
Because many people find it enjoyable, just like playing soccer, etc.
Yes there are DOTA AI maps which support computer players. You can find them on the GetDOTA forums.