I truly consider that my kid will be able to use the internet against me in ways inimaginable. Its exciting!
I'm still figuring out what I'm going to do for my son to give him the same... incentives.
As a parent I came to realize that kids are unlikely to try new things spontaneously if they already have an activity they could be doing which meets their expectations of interest. So as a parent it was incumbent on me to give them the exposure to new experiences in order for them to develop their own understanding of what they did and didn't like.
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.
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.
(But when they are home, yeah, it's text text text.)
The main difference between US and Europe is the way the cities are setup. Much more walkable and urban centric in EU. Populations are much denser. It was a nice change of pace to be able to walk everywhere last year when I was in Italy.
Go to the park to practice said sports as a family. Take breaks to play on the play structures. Repeat as needed.
btw their entire middle school is like this. I hope this is not a sad preview of their adult lives...locked in their homes on screens.
Have you thought about a "spontaneous" roadtrip and weekend camping trip somewhere with no reception?
This at lower- to middle-middle class schools, not the rich ones. And we're deep in flyover country, not anywhere trendy.