What are you going to be hunting? Are you ever going to shoot trap at a range?
It is pretty important for bird hunting and trap to get the stock to be just the right length for your arms and frame. Go to a reputable gun shop and have them show you something. You might need to go with a stock that is adjustable with shims for length, and has some recoil padding. Hunting shot shells have a lot of kick to them! A light (youth) gun will not help with the recoil.