2) Yes if you cannot learn new things.
I can learn new things, but if they are inferior, I want to be able to revert.
'modern' (if modern is the poorest end of the choice in 1990) interface is bloody awful. Things jumping to full screen is horrible.
Example. click on a music file.
Result - a black screen with a triangle in the middle. (fine on a touchscreen that can be held in one hand.)
The last time I remember behavior like that would be on a 386 running GEM in the early 90s, but in that case it was a step forward from running everything full screen.
All this metro stuff would be fine if it worked in a window on the desktop. (Even DOS apps could do that on a windows desktop back in the early 90s)
It would be such an easy design fix.
Microsoft deserve all the lost sales (more even) by being so stupid.
Requiring 3rd party apps to make a NEW system as usable as the old one, then blackmailing people into migration; not acceptable.
(I use the term blackmail, because fixing decades old bugs in newer versions, and not XP is little else.)