Let's say you search for life insurance. But the provider also knows that you've been previously been googling bareback gay bars, prep and hypodermic needle supplies. And holidays in Haiti. Except that it wasn't actually you googling that, your brother-in-law (say) was using your browser. Anyway, do you think that the insurance company might adjust your premium?
I know, reductio ad absurdum and all that, but I think you can see the point. Try this:-