Simple, really. Google is an ad company, while Apple isn't. I have no idea how Google analyses behavioural patterns etc, but it pleases me to think that perhaps I somewhat reduce the number of times I become a data point for them (same reason why I don't use their search).
c) Why don't you de-google an Android phone, plenty of OSs to choose from?
My bank app and national e-id won't work, or so I heard. Plus, I do enough tinkering with my xmonad config, emacs init file, and all that. Simply no energy or interest left to spend on mobile, which to me is relatively unimportant.
b) Why is it okay if Apple does that?
c) Why don't you de-google an Android phone, plenty of OSs to choose from?
d) You know that Google owns thousands of patents, including several key Motorola Mobile patents so you're paying Google even when you buy an iPhone?