Insurance (at least the kind we are talking about) is only mandatory if you have loans, and even then it is not 100% mandated. We do need insurance regulations, but price caps limit what things actually make sense to cover. To put it another way, you are free to buy land in a risky area if you want, but nobody has to insure it or loan you money for it. If you find someone who will loan you the money if you can get insurance, then you can't get insurance, that sucks for you but nobody owes it to you to hand over money on a losing investment. These requirements can be abused, but there really isn't much evidence of insurers, lenders, and investors colluding to rip people off.