Statistically less well educated might be relevant, income? Not so much. Unless you want to imply here that there's a link between lower income and lower technical expertise in using phone operating systems.

I would imagine that simply the fact that you're on Android brings a bit more technical challenges to the table, which users will deal with. Anyone that has used both operating systems has experienced this. Apple tends to simplify and hide a lot of complexity on a lot of things for their users which limits what you can do but increases the ease of use in a lot of basic things.

So I would say people who use Android are probably more used to overcoming these sort of hurdles than iPhone users might be. To an iPhone user, you might have to teach, to an Android user it's more of a reminder as they've probably already encountered something similar before.