You're thinking like a technical person. Aunt Susan doesn't know her phone is an Android phone. In her mind, it's a Samsung phone. It's not a question of not caring, she simply doesn't know.
There is such a thing as not knowing because you don't care, and I wouldn't even say that it's irrational. There's simply too much to know and care about in the world, so you have to be selective and event driven.
That is very true, and I have to say it's disappointing and baffling how Microsoft dropped the ball on this one.
Microsoft are the only ones who ever managed to make the separation between OS vendor and hardware vendors work (at least on the PC side). They are sorely missed in the mobile space.
