Where does he go to school? Does his school have a team? I would get him involved with that. He could get the opportunity to fish with other teens as well as boat captains who could teach him a thing or two. I have learned more in 2 years of fishing with high school kids than I had in my previous 6 or 7 years of fishing combined. If they do not have a team, I would encourage him to read articles and follow the pros on social media. These days that is often the best outlet for young people to learn. I know some of the high school fishermen I am around have caught lots of fish off of techniques they learned on instagram or twitter from the pros.