a UL certification will hardly be the only one in place for a commercial insurance firm to guarantee a jacuzzi. Just imagine the risk of electrocution.

Just look at it from a retail standpoint -- perhaps you have car insurance.

- (where I live) You are forced to have a driver's license

- (where I live) Even if your spouse claims not to drive, they wont insure me unless all other adults in my household have licenses

- i'm forced to pay more if i drive an unsafe car vs a safe one

- I can pay less if I have a LoJack or other safety device

- I can pay further less if I take a driver's safety course which runs 5hrs long

- I can pay further less if I install a OBD-2 device sharing my driver behavior

- I risk having my insurance cancelled If I do something bad (DUI)

- I risk having no payout if I do something illegal