But they can't base insurance premiums off of information that they don't know.
Of course. But as long as they can't form a sufficiently complete picture to make fair decisions -- that is, pricing based on actual risk -- discriminating on easier grounds that are correlated with risk but also happen to be incorrect in many cases isn't fair, so we make laws that stop them doing that.
Of course. But as long as they can't form a sufficiently complete picture to make fair decisions -- that is, pricing based on actual risk -- discriminating on easier grounds that are correlated with risk but also happen to be incorrect in many cases isn't fair, so we make laws that stop them doing that.