And this is why I've been recommending iPhones to my family when I always recommended Android
Even with Android becoming much more closed, it's still more open than Apple.
Not true if one pays up ($99/yr), in which case the interval becomes one year. Also apps that sign and install other apps with one's cert exist.
But for most people, the existing flow to allow external sources is already too much. For other people to install my APKs, while possible, is a slow and painful procese. Add waiting 24 hours? As good as blocked.
...
30 cents out of every dollar, you say?