They should, but they instead taught the staff to demand why you don't want to. I refused in one place and was confronted with them demanding why I wasn't giving them one.

"Was there something wrong with my service? You know that the tip is shared between us and the kitchen...."

I'm not joking.

This is already the norm in quite a few places in England. They auto-generate a tip on the bill and if you want, you can request the tip to be removed after.

school-issued machines

Stopped reading right there. Whenever you are issued a device, you should immediately assume it's being monitored by the owner of the device. This goes for school/job/etc. The owner of the device will always be monitoring it for reasons of making sure you are using the device for intended purpose to making sure you aren't using it for illegal purposes.

"I'll know it when I see it."

I can't think of anything scarier than that when dealing with the legality of anything.

Menstruation jokes aren't funny. Period.

Each one of those (except X) has the recycling image, indicating that it's a recycle bin, not a trash bin, which is Windows.

If you want trash, you want macOS.

In a world with consoles. Java needs a JVM, and those aren't typical with things like the Switch (2 soon), PS5, and Xbox Series (half the alphabet).