I saw it around that age and I enjoyed it, but I ran track so I might have been more interested than the average 13 year old would be.
Honestly, I don't recall the profanity. If I had to take a guess, the one Jewish character or his coach may have had racial slurs directed at them, but it's been years since I saw it so I can't swear to that. I would pre-watch it before writing the movie off entirely.