Sure I agree with that completely. But firstly that wouldn’t solve the issue for developers as then the arguments will just shift that other app stores should come preinatalled and later will shift it again (developers will never be happy with any percentage but also the review process does cost money, in app transactions infra as well), and secondly it increases the attack surface for scams (just watching on YouTube how old ppl get scammed makes me a bit uneasy that my parents are getting close to that age). Thirdly I think Google search is a very good example. Do you remember back in the day all those installers that had toolbars and would change your default search engine? I just don’t want us to open the door to anything remotely like that.

Honestly I think if maybe allow sideloading is an a setting available only for the iCloud family organiser to enable that mitigate most of my use cases.