When your neighbor Joe in his 1987 Buick run over your cat, you know he has 2 mortgages on his house and wife with cancer. When a self driving car runs over your cat or ding your fence post, you will gladly sue the multi billion dollar company, just for the settlement money. It will unleash the neverending stream of lawsuits and companies will be forced to stop offering self driving or go bankrupt. Yeah, they can afford best lawyers, but not 500 new lawsuits every day.