Should they?

I’m 13 and I’ve watched a lot of littler kids trying to be like roy oswalt, Barry Zito, etc. Is it good for them to do that?

What do you mean try to be like them? Im guessing you mean they try to throw with Oswalt’s and Zito’s mechanics. Honestly I don’t think that is much of a problem. I actually think thats good. Almost every kid who plays baseball tries to have a batting stance like their favorite player, so why not try to pitch like them too. On this website there are videos of various major leaguers and I compare my mechanics to the pitchers I am similar to whenever I am struggling.