“Okay mom, you need to install this VPN, log in, and make sure it’s on whenever you’re using Immich. Can you install it for Dad too? Now I’m going to call grandma back and explain that it isn’t a Deen Peen Em and she’s never going to find that.”

There are times and places. The moment you want the non tech side of the family involved, a proper with server over the open internet is usually the better option.