I’m guessing he’ll get a group of friends and do something else.
One of my sons had a great group of friends that were a mixture of 50% COJC members and the rest all over the place (catholic, baptist, etc) Generally speaking they had good moral standards. They all went to HS prom and it was just a bad scene. So a couple weeks later they put together a church dance and invited everyone. It was a real hit.