Nudging non-technical users to a trustworthy default store without actually restricting alternative sources is a pretty good solution for protecting non-technic

Nudging non-technical users to a trustworthy default store without actually restricting alternative sources is a pretty good solution for protecting non-technical users without limiting users' freedom. But it still gives the store operator an extremely strong market position, making meaningful competition very unlikely. In fact, for non-technical users it's a monopoly because they aren't in the market for apps but for apps they can trust aren't malware. So this is no excuse for Google banning apps to protect their profits at their users' expense.