Ever since I started watching MLP FIM, ive been wondering why Scootaloo's family members or past are never mentioned in the course of this show. Here is how I think the mystery has turned out to be. Scootaloo is an orphan. She was took in by an orphanage when she was little when her parents mysteriously disappeared and her family members were scared to take Scootaloo. She has been living in some sort of orphanage or care for many years and has wanted to be Rainbow Dash's little sister because she never had any family that she could remember. She is inspired by Rainbow Dash and treats her and respects her like family. That is Part 1 of Scootaloos Past.