I mean, I'm on your side, but many of these people won't do that at all. There's people still running vista. I ran into a machine running fucking XP just two years ago. They'll run 10 until they get ransomware, or the machine breaks physically, or it slows down from being resource hungry on old hardware. Maybe they'll switch in the case of the latter if they can't afford a new machine, or if something like "microsoft spying and pissing them off enough to ditch."
We should encourage for sure but I wouldn't hold out for most of them just yet. Best we can do is be here when they're ready, they're on lemmy they're bound to install Linux one day, it's in the contract we all signed as I'm sure you remember!