Am I correct in guessing that they all use Linux at your recommendation and ask you for help from time to time? Regardless, I'm glad it works for them. But if they do benefit from your help, keep in mind that not everyone is so lucky. And for individual users who aren't using their computers in a corporate/institutional environment with a sysadmin, the best software is software that just works without any help from a techie.
My father is 74 and he uses ubuntu. I installed it for him and he doesn't know the difference, really.
Most people are just using browsers and I don't know, maybe a spreadsheet once in a while? Primarily browsers. My dad casts videos to his chromecast and reads a few forums, checks his email.
Ubuntu just works for "normal" users. I installed it because I have to help him far, far less than I did when he had windows.
Same with my 81 year-old mom. She has been using Ubuntu for the past 10 years. She even updates it herself (after asking me what she needed to do once).
