Look into one of the boxes that's not really a computer and only does email. We got one of those for my mother in law, after my father in law refused to allow "his" computer to be connected to the internet, which as we all know is full of porno and who knows what all. :).
(BTW, he is WW-II vet, as is my father. I'm (late) Vietnam era, technically at least, as I was "alive in '75" and on active duty then, although I'd never claim to be a Vietnam Vet)
I probably should have mentioned my Dad is also a WWII vet, and Korean Vet. Retired after 26 years. May completes my 26th year, but mostly in the Reserves. My Dad's was all active.