That makes even less sense.
Really?
https://play.google.com/intl/en_us/about/developer-distribut...
> (4.5) Alternative Stores. You may not use Google Play to distribute or make available any Product which has a purpose that facilitates the distribution of software applications and games for use on Android devices outside of Google Play.
You have no chance of bootstrapping an alternative store outside of Google Play. Sideloading APKs is not how users get software on Android. Amazon failed hard with their attempt, and they pumped tons of money into it by paying developers to give away their apps for free; that, and they shipped hardware that has their store preloaded. Still didn't even make a dent.
We are not much better, sadly. https://floens.github.io/Clover/gp_unavailable.txt
Imagine a city where public parks are all bought out by private entities, that is the Internet right now.
We have less and less public space in the digital world and that is not looking good for the future of democracy.
Apple could keep the default to what it is on the iPhone right now, but should at least allow signed apps from other stores as a non-default option, even if they don’t allow unsigned apps at all.
It's always been Apple vs The Rest Of The World.