I am not a hat wearer but now I might become one because I saw some cool hats I like. This was by accident because I wasn't in the market for hats.
I don't believe privacy exists when using modern tech which is why I make all my Facebook posts public. I don't ever want to kid myself that what I am staying stays private to only my friends and family. I have not encountered a downside to Facebook tracking, but maybe you can point one out.
> Or voluntarily opt into getting tracked?
Yes, this would be fine with me