> Imagine the case for non-technical users.
Most non-technical users I know - elderly couples, family, etc don't even install apps, they just use what their OS gives them. I don't know any who does not have VLC or LibreOffice however (but that may be a french thing)
The discussion here is really about average users, and the baseline assumption here is that we are talking about apps that don't come with the OS, that we'd install, since we're devs, creating new stuff.
> I don't know any who does not have VLC or LibreOffice however [...] (but that may be a french thing)
It's a French or power-user thing.
I was about to say "you know that the median mobile-device user has one third-party app installed, right?" but then I thought better and Googled it first. This used to be true, but the stat is far out-of-date; nowadays the median mobile-device user has 40-to-80 apps!
I'm kind of shocked how much user behavior has changed, honestly.