And, of course, I already give the same information to my phone company. But really it's an issue of combining that data with what Google already knows about me

And, of course, I already give the same information to my phone company. But really it's an issue of combining that data with what Google already knows about me (location throughout the day through Android location services, phonebook through Android sync, gmail, web search history, web browsing history through its tracker network, and so on). I do appreciate that my argument and my actual use of the internet are inconsistent, my only defence is I am just in the process of working out how to move to some different services, to at least fragment where I'm sending my data.