As an iOS user, I love this and you are free to hate me for it. It keeps my grandma safer from scams. This is why I bought her an iPhone.

I don't want to hear any of the usual "don't use sideloading if you don't like it". I don't want it to exist so nobody can talk my grandma into installing a fake bank app over the phone, like they did to her once when she had an android phone and stole all her money.

Yes this is not foolproof still, some scam apps might make it past notarization. Just like cover fees in clubs and gates in gated communities -- it does not keep all the riff-raff away, but it helps.