I suppose it would be mostly practical skills, cooking, fixing things. Usually had to be done by people themselves.
Maybe also mental things like navigating (with or without paper map) and remembering their daily and weekly agendas.
What other things would be a big difference with the people today?
Good judgement
What would you consider good judgement? Not that I disagree with you.
In some way, the current environment feels like it forces you to practice your judgement more so than was necessary in the past.
But I suppose many don’t really bother.