To be fair, my husband is about as far from tech savvy as they come, and he’s been running Linux for years on his laptop. Every 2-3 years I upgrade him. Sometimes just within distros (Ubuntu 12.04 to 16.04 say. Other times, I’ve moved him distros (to fedora) or back to Ubuntu. Otherwise? I don’t touch his system. He’s been happy for years.
I feel so very very sorry for them. Couldn’t happen to a nicer guy… /s