Not an issue where we live - lots of kids do both..including my kids. The big gotcha here would be conflicts between theater (school plays/musicals) and sports that occur in the same season because *usually* (not always, not all sports) require practices immediately after school.
What you don't often see are students who are extremetly talented at one (music/sports) participating in the other - because they are putting in so much *time* on their area of talent. Our youngest dd is a very talented athlete who is extremely motivated to compete at her best for the long term - she's already feeling the pinch of not having enough time for things like music/etc... but otoh that's ok with her. Our other two kids and quite a few of their friends like having some of both in their lives.
polarbear
