And tangentially since you are mentioning old age, I think cognitive decline is a bigger worry than finding the right resources to keep up with things.
It has been painful to see my Grandfather who can otherwise show great insight on topics he is familiar with, struggle with understanding things a 5 year old would breeze through today. I would say having a respectful and trusting relationship with someone from the younger generation is very important since you may reach a point where you by yourself may not be able to keep up with things.