I agree with some of the opinions in here...I would discuss the pros and cons (including the IMPACT of each decision) and then decide together.
"You might not see your friends nearly as much. However, you will have a better chance of playing baseball in high school and maybe college."
Kids can seem to look only at the immediate impact, but if you let him know how each decision would impact the next few years then maybe you can help him make a decision. Just out of curiosity, if he actually asked you what you would do, what would be your answer?