That requires having a PC to unlock basic functionality on your Android device, assuming the change we're talking about is still app installs.
I don't think OS vendors should be expected to keep people from doing dangerous things. A warning label saying "hey that's dangerous because..." is reasonable, but anything more and they're trying to be my sysadmin against my will.
The sysadmin part is their value-add. One reason my current phone being an iPhone after being 100% Android for a decade are the better walls and nicer garden.
These are sold as consumer devices and not general computers. It sounds like you want something different. They’re selling cars and you want a motorcycle.