Teenagers don't really play outside.

I was outside all the time before age 13 - after that I started going to the mall and talking on the phone and working on the computer in lieu of outdoor activities.

This was back in the early 90s. No need to panic.

Don't you have an equivalent to football (soccer) wherever you are?

I've heard many parents of teenagers complaining that it's hard to get them off their football matches (5-a-side soccer is huge here, and any street can become an impromptu pitch).

Of course, depends on the kid, you couldn't take me off books and computers (when available) as a teenager.