I used to openly hate the UAC box but now I do recognize it as a low cost, high-return feature that interrupts people to force them to recognize that something

I used to openly hate the UAC box but now I do recognize it as a low cost, high-return feature that interrupts people to force them to recognize that something serious is about to happen. It probably works fine for families and small businesses where it gives non-technical people and opportunity to back out of whatever they were doing, especially if they didn't realize or intend to change something.