I used Windows + Linux heavily until Vista came out and it forced me to Apple to run XP, ironically.

The most popular Apple devices, iPhone + iPad are designed for the average user in the masses first, and not the power user. One is a much larger group of sales.

Most of the non-tech people I know with an iPhone do so because "it just works" and they "aren't very good with tech". A lot of these users buy an Apple laptop for an overpriced but reliable web browser, again for ease of use and not being a power user, and not having to fight with a historical windows OS that will slow to a crawl.

It's the same people that before an iPhone would have a window laptop and always be asking for help with it. I think a segment of these users are being well served by chromebooks too.