All for profit insurance must by definition bring in more than it pays out. From cars to homes to health to pets.
If instead of paying all your premiums, you'd be far more likely to be able to afford the services that the insurers are supposedly paying for. Like, yeah, there's a chance you need a new engine, and a small chance that all of your monthly car insurance totals up to less than the cost of the engine, but the entire point of the company is that they know that it is far more likely that you will end up paying more for their service than you'd have actually payed for turns out the only thing that ever went wrong was a small crack in your windshield.