It's your oc, you can make it anyway you want. Most people, incluing me, have problems when Alicorn oc's try to fit themelves into the canon of the show (Making them some how related to the royals (Tia, Luna, Twi, Cadie) I'll give an example of my oc right here: His name is Vladicarus, grew up in canterlot. was a light thief, only chance he'd ever meet a princess was if he was in a crowd and saw Celestia Only chance of him knowing Twilight is if he bumped into her/shining when they where kids. his job makes him a treasure hunter, so he's barely in equestria, an when he is,, it's selling things. Mother is a flower shop owner in canterlot, So she may know a few people from there. But Vlad, only comes into..canon, if my friend ever wants to do an oc x canon roleplay, y'know? So make an alicorn oc, but make sure it doesn't go into canon, unless you rp with him in the canon characters.