It is really up to you. If it doesn't cost you anymore to have them on your policy, it acts like a safety net while they are home. They are totally covered by TRICARE and if they need care, unless it is an emergency, they have the phone numbers to call to get authorization for care. If you a near a military base with a clinic, they will most likely travel there, or the closest military care facility to their location. Some parents wait until up to commitment, their junior year, to remove them from policies in which it doesn't cost them any extra. In our case we have/pay for tricare prime(retired). So, they come off automatically. We do carry them on our dental policy, just because.