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?
I saw an interesting thing about textiles recently. Sewing and knitting were considered basic essential skills until a generation or two ago.
Surprising how fast it can change. I feel like knowing basic mending is still very useful today.
We learned it in school.
It’s absolutely an essential skill. I have clothes going on 20 years old that still look quite nice because I am capable of mending them. Even if you don’t ever use a sewing machine, hand-sewing basics are so useful.