There must be a risk to be underwritten by the insurance carrier. Otherwise the policy (contract) would fail for lack of a consideration. They would be receiving premiums in return for insuring nothing. The risk to be underwritten is the insurable interest.

Conceivably you can insure pretty much any risk that the insurer is willing to underwrite. I suppose if for instance one's ability to earn a living depended on his ability to operate a vehicle it could be insured if you can find an insurer willing to do so. However, his damages including future earning capacity may already be insured by the other driver's liability insurance.

Several years ago my wife was rear ended when she stopped for a traffic light. Fortunately there was no bodily injury. The other driver was held to be at fault, and his insurer was required to pay for her repairs. The insurer was very anxious to see if I was going to assert a personal injury claim....repairs to the vehicle....medical expenses past and future and impairment of future earning capacity. They were relieved to find out there would be no claim.