I do understand that sideloading is something desirable for some percentage of people.
Point is every thing has pros / cons. Sideloading is like buying a car and upgrading it with NOS. Yeah it's wonderful. Your going to have a very powerful car. But the risks also increase. Most people don't need NOS in their car.
I'm speaking for most people. In my household I recommend everyone to use Apple devices, it keeps them safe and happy.
Ultimately everyone is entitled to their own choices and have to accept the consequences. I guess we'll have to wait and see how it plays out now that it's coming to iOS 17 in the EU.