This is exactly how I got my son started when he was 6 years old, though it was 15 years ago, I bought him a PSE 15# compound,which could go to 20# and increased draw length, It looked exactly like a big boys bow, magnesium riser, cams etc. He loved it.I would get the best set-up you can to start with (mission menace, whisper creek phantom, mathews genisis) He will benifit from a better set-up and keep his interest longer if he can consistently hit the target. You can get these used and always resell the equipment if he doesn't have the desire. But he will be alot better off to start him in the right direction equipment wise to start with. Also what helped my daughters keep interest and want to learn is take it real slow and use visual targets such as balloons with a bit of baby powder or flour inside that will blow up when hit. Any more advice feel free to ask thats what we are here for!