I'm raising 5 of them in the States right now. I freely ignore most of these social mores. In our neighborhood my kids are among the most popular playmates. They actually went out and found friends so most of the children in the area know them. We don't trap them in the house and in fact frequently force them to leave so they aren't glued to the computer or Netflix.

We've had broken bones, cuts, scrapes and other injuries but they all know how to do limited first aid and are pretty cool in a crisis. I'm not worried about them at all.

My experiences are entirely anecdotal but it's an example showing that you don't have to feel trapped by those social mores.