Earlier quoted context omitted.
One problem is that you aren't allowed to make mistakes in social situations anymore without facing extreme consequences, and you're right that it isn't the sort of thing you can learn by reading about it. There's really no chance for young'uns to learn in this day and age. It's tough, and the worst part is that there's no way out or hope for things to improve. And you can't complain or seek help, or you get treated…
What do you mean by "extreme consequences" for mistakes in social situations?
But you also can't opt out of online socializing if you want to meet and keep in touch with people.