For me at least, I think the effort and expense of buying a house and moving elsewhere is quite a bit higher than using another phone/app store.

However I do understand that for a lot of people, moving from Apple to Android (and vice versa) is not as easy or straightforward to do, and thus why perhaps the discussion should be about regulating those companies that hold so much power, as if they were a monopoly. That doesn't make them a monopoly by current definitions though.