@Nomad yeah that’s what I hear too. And it worked for me. I incorporated body weight training into my routine when I was younger because I remember how that felt when I was in taekwondo so I wanted to remember that. Chased the dragon so to speak. But I never got to the point where you could see every muscle fiber in my muscles. That’s actually dangerous. But yeah I used to ride my bike, swim every summer, and do lots of push ups and sit ups.
@Andrey I heard that as well but I’ve also heard counter arguments. Such as the break down and rebuilding of muscles while you are still growing actually doesn’t do anything that harmful, instead it actually helps them to be more adjusted to the stresses you put them under when you are older. And especially like things for strength training the back. Lots of people grow up that have bad backs because of the lack of exercise to keep the muscles strong which keep the vertebrae in place.
I agree children should be supervised by a qualified trainer though. In my case, I wanted to lift weights like my Dad. I wasn’t forced into it.