You don't know a whole lot about insurance.
If you are MUCH MORE LIKELY to wreck your M5, then the insurance company will charge you a great deal more. If they KNOW you are going to wreck your M5, and total it, they will charge you replacement cost, plus administrative fees, plus reserve funding, commissions and taxes.
An underwriter's job is to KNOW what normal expenses are going to be, and then charge for the risk the insurance company is taking for things beyond "normal". They add premium loads to that to cover administrative costs.
An older person should pay more because they have: 1. Higher Normal, everyday costs (maintenance drugs, more doctors visits, etc.),; 2. Higher risk - MUCH more likely to get a seriously expensive disease; 3. Higher administrative costs because the insurance company is going to be spending a great deal more resources on them, than the 22 year old, who may, or may not have a single claim all year.
Yes, insurance exists to spread the cost around, but that is mainly related to the risk piece; the unknowable; the rest is known.
Which brings us to WHY healthcare WAS so cheap and has been rising SO fast.
As with most other issues in this country, it's the baby boomers fault. In the 70's, the bulge was with young, healthy types; lots of them paying premium, with relatively few elderly; and nobody gave much of a crap about the elderly - the market and focus was on the boomers. As they've aged; so has the cost of healthcare risen; and NOBODY thought for the boomers to be putting money away to cover their future healthcare costs; so that burden falls on all of us. Wouldn't want to duly stress the boomers, would we? Pile on top of that the rush to develop new drugs to sell to the boomers (nobody heard of VIAGRA until a 'boomer couln't get it up), and you have a perfect storm of increasing prices.
And the kicker?
There's no solution.
The Boomers ARE getting older, and sicker - the cost is going to continue to go up, unless we decide to NOT spend a great deal of money on them when they get catastrophically ill.............the only real solution.
Frankly, I think Obama gets this, but he just can't say it.