They all do, also your profession, number of miles you drive per year, of course driving record, vehicle you drive, do you pay your policy on a monthly basis/pay in full (late payments hurt your rating class) as well as marital status all figure into the actuaries computations. Take a defensive driving course If your state offers it, also make sure you don't have any unnecessary coverage’s.
Insurance is about limiting risk; those with credit problems are more likely via statistical computation; as higher risk.
I agree it’s not fair grouping a person into a specific category, you can’t argue with the numbers.
You would be amazed in the actuararial department they can calculate the likely hood of when you will take a shit.
Dr.