As opposed to non-targeted ads? The whole point is make your device be more personalized. It cannot do that without knowing more about you. Some people embrace that. Some people hate it. It's a personal thing for sure.
Yep, like right here on AI. I was looking at used cars for a friend, and now AI is full of used car ads for me. Sometimes I like that, sometimes not. It's hardly a big deal.
More importantly, with support from things like Google ads, AppleInsider gets to stay open, so people can complain about Google for free. Win-win.
As for controlling it, try going to your Google Dashboard and changing / deleting things like your location and web history settings or history. You can even click on Manage Account, and choose "Delete profile and remove related Google+ features.", which supposedly removes everything.
You're clearly assuming I have a "google dashboard" or make use of Google+… I don't. The less they know about me, the better. Although they seem to have invaded every nook and cranny of my "internet experience", like it or not. Now you're telling me that if I "personalize" with them, and volunteer even more of my personal information I can then "control" some aspects of their invasion into my privacy? Neat...