I have to assume you are a girl, that's pretty typical.....

I think you should be allowed to try out for the Baseball team and if you are
good enought to make the team you should be allowed to play.

I know School sports are a little different but...

I ran into this last year signing my daughter up for little league. She was 8 and never played t-ball so I had to put her in softball, she was very disappointed. She is very good, the coach didn't belive it was her first year. She is 9 this year, she doesn't want to play softball she wants to play baseball (last year there were 3 girls playing little league which I did not know when I signed her up, I won't be taking no for an answer this year)