I've posted many times about my baptism at 12. I did it to help my elder father to look good back then although I answered all the questions right and said it was my decision at the time which it was. But I was the kid and it was my parents job to keep me from joing a cult, oh wait they were in it to.... Dang it.
Any how the worse thing was the that puberty was just begining for me. Once I hit 14 it was a never ending cycle of judicial committees, guilt, anger, and those famous "back room discussions". My Dad pretty much treated me like an adult once I got baptized. There were so many times I needed his love and honest advice that I didn't get it. There was a block between me and Mom as I was now spiritually superior to her. She couldn't pray in front of me or conduct a field service meeting if I was there. That was weird conducting the field service meetings at 13 for a bunch of grown ups because only women came out.
Just be a good friend to your buddy rise above the JW shit, he's going to need your support even if he doesn't know it.