Parents will always be like that. Being disprovable of new and different things from what they have used too, except for those parents that are also bronies with their children, that is the most awesome thing in my mind. But anyway, no matter what if you want to keep being a brony you will be a brony no matter what!
If it makes you feel better then my mom is disapproving of me being a brony too, once she scared me with a visit to a physiologist and it never happened, neither i changed after that, i actually evolved in being a brony!
Be strong! And Never Change!
BROHOOF!