As a parent do you think you'd pull this child out of psychiatry?

Well if he was getting molested his entire childhood it's all he knew. You said "he was always so happy." Maybe he liked to play with his dad that way? Maybe it wasn't the painful type? I know I used to hump pillows and stuff since I was like 4, so to say kids don't like is ignorant. If my kid didn't want to go I would find out why and if it was legit I wouldn't make him.