I guess because my dd shows no emotion ever, even at 9, I forget that some kids do. I really mean it my dd still doesn't at 16yo at pitching or batting. She doesn't do the cheer thing and doesn't really talk at all playing softball. She is void of emotion, the quiet one. So no don't quit pitching,( Not that you would listen to a guy online anyways).
Kids - even siblings - are all wired differently.