New Hampshire is the only state in the US that does not require liability insurance. If you drive through NH, make sure you have uninsured coverage. (and it is a good idea anywhere)
Plus most medical expenses quickly will exceed those bond values these days. Maybe decades ago if you had a lot money to just set aside getting no interest on it it may have made sense.
However the costs of medical and even cars today make it quite a risky proposition
It makes absolutely no sense for me to post a bond for such a small amount when I can get ~10x the coverage, plus all the claims handling, for $1200/yr for two cars and two drivers.
It would make sense if I was a business who had hundreds of cars or some other weird corner case perhaps, but regular people who could afford to post a bond have a better option in the insurance market.
https://www.nerdwallet.com/article/insurance/minimum-car-ins...