I am just 16 and live in the UK. When not erect i can pull my foreskin back half of the way down my penis. But, When erect, it doesnt automatically retract i can just see the hole. but..i can pull it about 2/3's back without pain..and with the help of a second hand i can manage to get my end out to the "purple line"...i feel it should automatically retract and although it doesnt i feel it should definately be easily pulled back when erect with one hand.