I asked the same exact questions in April of this year when I switched.
I'll be blunt. Apple's idea of "ideal usage" blows. iOS is similar to the first "feature" phones save for a better app store. They have a very "Nazi" mentality based on what makes them the most profit instantly.
After two weeks of slamming my head against the wall going "Why can't I do this on iOS? Are you serious?", I remember why I left Android. I missed 1 text message and 2 calls in a 24 hour period. All three were very important and one was time critical. I haven't had that happen on iOS once yet and I know for a fact it never will.
So I made a choice. Research what I can do and just accept the rest. Does that make me a sheeple? Yes. I won't even bother to argue otherwise. But when I need my phone to be a phone, it won't let me down no matter how many apps I install. Android is currently unable to do that.