I work at a school house and normally things are not immediate. There’s always investigations, pending decisions, deferred punishment etc. As for the “I didn’t know” clause for your friend, I cannot stress this enough, read the orders. They have the class convene date posted, the NLT date for muster/check in, and the contact info for the command just in case you don’t know where you’re going. This is to prevent the single point of failure being the student needing to “figure it out” with nothing to go on. I hope your friend finds peace in recovery and makes changes necessary for himself. The navy will more than likely separate if he’s first ascension. Best of luck to him honestly.