Worrying about whether or not somebody has an Android is going to be very bad for your mental health given that something like 42% of the US cell phone market is Android. Is it possible that you are living in a bubble of people that are significantly more committed to Apple products than the median person?

I don't live in such a bubble, and whether or not somebody has Apple or Android is not something I have ever heard an adult bring up as a serious thing. The most I've ever seen is as an observation about why some sort of thing in a group chat didn't work, but then everyone moves on with their day and the chat continues with the types of text and media that do work.