Windows wasn't like that.
Yeah, and it was an absolute disaster. Until very recently (Win7, roughly, or perhaps Vista) near every Windows install -- unless it had been locked down by an administrator, or maintained by a power user -- was an absolute cesspool of malware and outright spyware. The average Windows machine was literally unsafe to use. That's fine for you to want it, but don't impose it on me.
Essentially what you're asking for is a return to the world where some of the most common consumer devices in the world could only be safely operated by power users. Except it would be even worse today, since smartphones are so much more essential and offer so much more information about us (biometrics, location services, mics, cameras, etc) that can be harvested and exploited.I (a power user!) sort of miss those days too. It's not like I ever had malware.
But in general, that wasn't working.
What do you think about compromises (like macOS, and Android) where non-blessed software is disabled by default, but can fairly easily be sideloaded?