The math of insurance suggests that, if it needs to be widely carried (either due to things like mortgage requirements, or the simple realization most people don't have enough resources to absorb a major catastrophe themselves), the most economical way to go is to have a single risk pool that's as broad and diverse as possible, so it can swallow a large clustered crisis more easily. Yes, this is a bit of robbing Peter to pay Paul.
I always found it funny when insurance marketing talks about "personalized rates", when the goal is to DE-PERSONALIZE the risk. If you have 10,000 customers in Los Angeles, and 5 million elsewhere, you can either isolate the LA customers and charge them the "real" price of the risk, which will be unviable as a business and probably politically touchy too, or you can include them in the broad pool, and the people with a full-cinderblock home in a non-flammable state pay $20 more a year so the entire endeavour can work.
The concept probably works better if you have some concept of social cohesion to lean on-- you might not get the best possible outcome personally, but the system itself is more robust for everyone.
I always found it funny when insurance marketing talks about "personalized rates", when the goal is to DE-PERSONALIZE the risk. If you have 10,000 customers in Los Angeles, and 5 million elsewhere, you can either isolate the LA customers and charge them the "real" price of the risk, which will be unviable as a business and probably politically touchy too, or you can include them in the broad pool, and the people with a full-cinderblock home in a non-flammable state pay $20 more a year so the entire endeavour can work.
The concept probably works better if you have some concept of social cohesion to lean on-- you might not get the best possible outcome personally, but the system itself is more robust for everyone.