I see this more as a thought experiment. You can't really tell other people what they should use. I can't also do that at my workplace. If someone comes to me for help fixing their PC I can of course tell them just use Linux, but most of the time I need to reinstall the OS it came with. The Linux culture is intrinsically elitist, that's just the way it is. That's not to mean that you need to be a jerk about it, I use Arch btw, use whatever fits your needs.
Some time ago I got a mini PC for my dad who was curious about the web and stuff and I haven't hat a shred of a doubt that it would be Linux. To satisfy my own curiosity, I used it as an excuse to do some distro hopping and tried a lot of distros to try and find a balance between ease of use (from a standpoint of an elderly person) and my own nerdyness. I ended up installing a KDE based distro because the UI can easily be customized, resized and simplified for his needs. But let's be honest, not anybody is willing to spend hours searching and trying different operating systems and tweaking and stuff. Also the web sucks nowadays for people that are not used to it, for example how should I explain all the stupid cookie stuff, or the ads in between articles. Come on just be nice to people.
Well, you've said it yourself, don't force it on anyone.