If you get a letter from Hogwarts, you're going there. I don't think you can just go there, as for non-magical people cannot see the place.
yes
It represents that you are a muggle.
No, as the Harry Potter series is fiction, Hogwarts is also fiction. However, it has not been confirmed by scientists if magic is real or not. Some believe magic is real, while others believe magic is a myth.
Muggle born wizards/witchesThe ministry of magic knows when magic is performed somewhere in the muggle world and therefore can identify muggle witches and wizards. The ministry and Hogwarts school has been known to work together at sometimes if not always.---The minute someone magical is born, their name is (magically) written down on an enrollment list for Hogwarts.
Muggle cannot attend Hogwarts or even see the building. The only subject Hogwarts teaches that doesn't involve magic is Muggle Studies.Presumably, Ancient Runes and Arithmancy could also be learned by muggles although as we never see these classes that cannot be said for sure.In the video games, classes like Music and Art are also mentioned. However they are never mentioned in the books.
No. Muggle is someone who does not have any magic in their blood and they do not study it. Hermione Granger is a Muggle-born, meaning her parents does not have magic.
Dolores Umbridge is a/an Head of the Improper Use of Magic Office (formerly) Senior Undersecretary to the Minister of Magic (β1998) Defence Against the Dark Arts Professor at Hogwarts School of Witchcraft and Wizardry (1995β1996) Headmistress of Hogwarts (AprilβJune 1996) High Inquisitor at Hogwarts (1995β1996) Head of the Muggle-Born Registration Commission (1997β1998)
its magic
In Fantasy: When any and all wizards and witches (including muggle borns) are written down by a magic quill in a book of dates. When it shows that year's wizards, McGonigal is responsible for sending out letters and/or meeting the parents of muggle borns. In real life: It's not real.
Lily Evans was a muggle-born witch and it is highly unlikely that she is a descendant of Godric Gryffindor nor is she ever mentioned as being so. However, it is possible as muggle-borns are born into families which once had magic. When Squibs marry muggles the magic in the family dies out and will eventually resurface at a time where nobody remembers there was any magic in the family.
The ministry of magic don't destroy his wand, they sent him a letter saying they were going to because he preformed magic outside of Hogwarts but after a hearing they decided not to because he was saving himself and a muggle from the dementor - which we later find out was sent after him by Umbridge.
If you did not receive an invitation from any schools such as Hogwarts school of witchcraft and wizardry, the Beauxbatons academy of magic, Durmstrang institute or any other school in your area upon your eleventh birthday, there is no hope for you. You are a Muggle.
Well, you can't really decide if you want to be a witch or wizard. Hermione Granger, for example, she is muggle-born so she didn't decide to go to Hogwarts. Harry was sent a letter saying to go to Hogwarts. I think they have to choose you.