I received my first shotgun at age 12. A 410 single 3" hammer gun. I would recommend the same In this instance as it will teach many good habits. safty,good marksmanship,and the light recoil will help to prevent bad habits. it will also be in size to his physical demensions and easy to carry. And cheaper to shoot. IMHO If only we all could return to yesterdays. no matter what the final outcome is just enjoy the experience Pilgrim