Here's what I recommend: because you don't have a drivers license, don't have a driving record, and won't be using the vehicle, I would have your son get car insurance for the vehicle but
I would use your bank/credit card information to pay for it. Most insurance companies will allow you to add another consenting individual's payment information to the insurance policy - as they want to be paid for the policy regardless. However, because the vehicle is in your name, you would be listed on the policy as an "additional interest." This shouldn't affect the premium for the vehicle, but help settle any issues with the title being in a different name than the insured.
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. Best of luck!