Why did UI's turn from practical to form over function?
E.g. Office 2003 vs Microsoft 365
It's easy to remember where everything is with a toolbar and menu bar, which allows access to any option in one click and hold move.
Seriously? Big ribbon and massive padding wasting space, as well as the ribbon being clunky to use.
Why did this happen?
Oh, for the love of . . . If you need, or even just want, accessibility options, including larger pointer targets, they should be available to you, but as options, since not everyone needs the same ones, and things that help one person's issues can actually make another's worse.
The killer combination is to have both ramps for those who need them and stairs for those who can use them, coequal and well-maintained. Sometimes space may dictate that you can only fit one in, in which case you should choose the ramp, but a dozen different Windows skins would take up less space on the install media than one flop "feature" like Paint 3D, and I assume it's the same for a Mac. Part of the reason for the currest state of affairs is that corporations are horrified at the thought of giving people actual choice and letting them find what works best for their level of ability as well as their preferences. They might make $0.01 less per unit that way, you see.