You’re missing my point. If side loading and alternate app stores offer a bad experience it doesn’t need to affect you. Just don’t use them and you will continue to have the same ‘walled garden’ experience that you currently enjoy. If other users choose to use them and have a bad experience, that’s their choice!

How so? If you don’t want to side load, then don’t. Others having the ability to do so doesn’t mean it needs to affect you…