...Because you are a Foster kid. In one of the most insane legal technicalities I have ever heard of, foster kids are wards of the state; Private insurance companies cannot insure state 'property'(as if people were property). because of this, foster kids cannot be insured until they are adopted or become adults, and are no longer the responsibility of the state. In most states, you must have insurance to drive - therefore, for foster kids, no adoption means no insurance which means no licence.