LOL, pretty sure you're wrong.
No, you do not need a Gmail address at all. It
prompts you for one, but you can skip it if you want to. I used to skip it on purpose back when Google tried to auto-restore my apps (this was a huge problem on a Droid 1, because of the limited internal storage it had).
You only need a Gmail address if you want to use the Play store...if you are using an alt market (like Amazon) or sideloading all your apps, a Gmail address is not needed. Contrary to popular belief, Android phones are not Google Phones. Google is just so awesome everyone installs it by default, but it's not compulsory. Not even on Nexus phones.
You can use and Android phone with only Microsoft apps on it if you really want to. It's not something I'd ever recommend, but it can be done, and it can be done without jailbreaking or rooting or anything.
If Apple happens to
censor an app you like, you might feel differently.
I am running Gmail 5.0 now...Google has not released it to the Play store. But because I can sideload, I can install it myself, even if Google has not made it available.
It's nice that Google allows me to make that choice for myself. In this case, I, as the end user, decided I was willing to take the "risk" and sideload it myself. I appreciate Google treating me like an adult.
Who gets to decide if it is "inappropriate"? I paid for the phone...shouldn't I get to decide that for myself?
Choices are not a bad thing. I like having the ability to choose for myself rather than Google/Apple/whoever choosing for me. I'm not a child.
Apparently that takes all your texts and emails with it though.
By contrast, I can have multiple gmail accounts on my phone at once. I can switch between them at will and even use them simultaneously.
Believe it or not, I actually have an Apple ID. I was required to get one in order to buy music from iTunes (which I still do, even today).
If you are they type of person who happens to like all Apple apps the best, then yeah, you won't miss having a choice. That person is not invested in the Apple ecosystem though and it sounds liek they want to continue using their own stuff (which is probably mostly Microsoft). For that person, no 3rd party app integration might be a problem.