2) Bon-Bon: No! She’s good! I don’t want her to think she’s bad! She knew a lot before she ever even came to me! But, if something does go wrong, it’s my business. Besides, that’s a lot of pressure to put on a young filly.
3) Well, most unicorns do at least some kind of magic. If you really want to travel down this road, I think the key might be to start looking through arcane textbooks and try to find out what the symbols that make up your cutie mark literally translate to.
4) I have no idea. Hanging out with other cultures?