Are parents of children with autism naïve, or were my parents "too normal"?

So it seems to me that a lot of autistic people in my life didn't know they were autistic until they were older. Meanwhile, my parents noticed my behaviors as a child and thought "what the fuck is wrong with her???" At first I thought "Other parents are naive and it's heartbreaking when they see their children behave abnormally yet don't see anything wrong" but then I thought "What if my parents are like the bullies who knew I was weird?" Do you see what I mean? What am I supposed to think?