Yes, that's why targeted ads shouldn't be a thing unless it's opt-in (not necessarily my opinion but it seems to be the point the parent was making). At that point, to opt-in you can create a google account. Currently though, Google will attempt targeted ads on people without a Google account by trying to identify and track them through other means.
Ideally you would have site-specific or content-specific ads normally and personalized ads if you created an account and chose to opt-in.
They're not choosing to have targeted ads that share their info around the web and cause someone over their shoulder to infer things about them.
That's the point -- we should have that choice. And the default should be "no".