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?
Ah yes, the 1970’s, a famously peaceful and rational time.
I kinda wonder if people are thinking back further than 50 years here.