Isn’t it enough to just enter your password once to login, then receive a warning whenever you’re about to do something potentially dangerous?
If it’s such a big security risk, how come the most popular and widely used operating systems in the world and their users seem to be unaffected by it?
I guarantee, most new users coming to Linux from Windows/macOS are going to laugh and look at you funny if you try to justify entering your password again and again and again.
Just because anything is popular or widely used it doesn’t mean it is good or correct. Driving drunk with no seatbelt and with your underage children in the seat upfront was legal. Much like vaccines and seatbealts designs are free (as in open) because they were too good to be sold and would be unethical to do otherwise.
So if you think a computer is a simple machine and want to treat it as a screwdriver go ahead, most users are not smart to use computers anyway. Because of that most people do not even read what they are installing much less the messages they appear and then they ask why they get viruses or why their system does not work.