One of my nephews learned how to use his own Youtube account to watch what he likes on a tablet when he was 11 months old, before learning how to walk and talk. Scary!

There are few steps that I discovered, such as learning how to swim, learning an martial art when you are old enough ot understand it on some level, doing long walks and physical games. But this does not address the problem of others. One of my cousins raised his kids without screens, not even TV. The older girl is very mature emotionally and socially, but she lacks some technical intelligence and awareness. I am waiting to see how this will change when she will go to school. There are pluses and minuses each way, I think the key to success is use it in moderation, and learning how to detect addiction and to control it. The researches done on marshmallow test are brilliant to find more about the modern behaviour and how to shape it optimally. Combine that with the Polgar observations (the guy who raised 3 Chessmasters, all girls) and you may get some good feed back.