Just here to put a 'ditto' on what has already been said. I wasn't 'born' into it, but my mom started studying with the JWs when I was about 5, so I started school when she was already getting into it.
As a kiddo in school, I never really knew what I could do - or not do - but found out later when I got home, that I couldn't do it. I remember one time, in the second grade, it was Valentine's day activities. We all had to make little paper bags and decorate them and hang them up to get (and give) Valentine's day cards. Well, I made the sack because the teacher said that it was 'art'. I also received many Valentine's day cards. When I took the sack home, I learned how wrong it was, and the cards got tossed.
Poor kiddos at school never got any cards from me, and they never knew that their cards got tossed. I got talked to severely at home, and learned never to do THAT again. Soon, I learned that I couldn't do almost ANY activity if it was connected with some holiday or other. Music class was confusing around Christmas. There were some songs that I COuld sing, and some that I couldn't. Try explaining that to an adult music teacher that is trying to get all of the class to sing.
Yeah... I guess you could call it a form of mental abuse.
I learned young where to go to get away from all of the bullies - the library. None of them (or very few of them) read books, so I was usually safe there, and got to read a lot of books.
Not all of the kids in school were out to get me, there were a few other mis-fits that I could hang out with, but they were not JWs, and so I could not really be friends with them like other non-JW kids could.
No sports. No band. No music. Not even allowed to join honor societies - we weren't allowed to receive 'honor'.
The irony of it all is that I have done genealogical research recently, and went looking into a newspaper in the town where my mother grew up. I found several articles where they mentioned her name and the activities that she was involved with when SHE was in school. She was quite the social butterfly, and was on the school newspaper, among other activities that I wasn't allowed to do when I was in school.