Comment by kernal

Android gets a bad rap because of security and Apple has exploited this in their marketing campaigns to the max. So the moment Google does something to address this glaring hole in their security model the 1% vocal minority throws a fit. You’ll still be able to side load, but because it has extra friction they’ll threaten to switch to iOS. To which I say - go for it. Google doesn’t care about people who side load apps like an automatic reloading the chamber. You’re an insignificant percentage of their base.

Personally, I would rather see Android only run signed and sanctioned apps to prevent the technologically illiterate from getting pwned. If you want to be able to side load then sign up to be a developer and go to town on your device.