Just to clarify, going the OCS (Officer Candidate School) route from undergrad only requires a degree, no specific major. The military focuses on your overall qualifications and potential for leadership, not a specific field of study. OTOH, if you are looking to serve in medicine, law, or some other specialty, you would obtain that degree first, then apply to OCS.
However, it’s clear from the OP that this student would not choose any form of military service after completing a degree from a civilian college as service is not their goal. The choice is USNA or UCLA with no military commitment.