It's not like my kitchen only fits Whirlpool or my garage only fits Honda.
It's not like my kitchen only fits Whirlpool or my garage only fits Honda.
Chances are they have software installed on their machine. OSX has a vibrant ecosystem of independent developer and thus a pretty large number of bespoke good-quality software which might / would have to be replaced. Especially as cross-platform software tends to integrate less than well with the platform.
That goes double for older mac users, which have a higher tendency to use native software.
And of course one needs the time to adapt to different paradigms, shortcuts, facilities, … once again especially for older users of the platform for whom this becomes second nature.
Incidentally the points mix, the second one drives the first, I regularly notice cross-platform software which doesn't respond properly to Cocoa's text-movement shortcuts (even a simple C-a / C-e).