Share 'How Junior can a Junior be?'

My son is going to be six in May.  He is suddenly all about disc golf.  I am going to give him a chance to come to the course a few times with me to really get a feel for the interest level.  He can throw about 100 ft forehand on a good throw.  He can throw 150+ ft rollers at times.  He is learning to turn a disc over so it's not too stable.I am curious how young he can be and effectively go to a…