Why is auto insurance ridiculously overpriced for those who drive few miles?
First you have to understand that insurance is basically a social system, just with Shareholders. Insurance costs consist of 3 factors: Now, to encourage a low-risk behavior a separating factor is search in the vast amount of statistical data. Drivers experience, miles and type of car being the most common, but also other things like oldtimer-status etc. are possible. If it so happens that the 3-5000 miles driver do only in average have 80% of the damage-costs of a comparable group 5-8000 miles driver, you´ll get the 20% bonus on factor 1.  So the answer is, it is not overpriced, there is just no linear relationship to mileage. You can´t divide your insureds in too many groups or you´ll miss the mutual aspect of insurance. If everybody just pays his own risk, he can just do so in his bank and save on overhead and profit.
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### Instruction:
Why is auto insurance ridiculously overpriced for those who drive few miles?

### Response:
First you have to understand that insurance is basically a social system, just with Shareholders. Insurance costs consist of 3 factors: Now, to encourage a low-risk behavior a separating factor is search in the vast amount of statistical data. Drivers experience, miles and type of car being the most common, but also other things like oldtimer-status etc. are possible. If it so happens that the 3-5000 miles driver do only in average have 80% of the damage-costs of a comparable group 5-8000 miles driver, you´ll get the 20% bonus on factor 1.  So the answer is, it is not overpriced, there is just no linear relationship to mileage. You can´t divide your insureds in too many groups or you´ll miss the mutual aspect of insurance. If everybody just pays his own risk, he can just do so in his bank and save on overhead and profit.