when my daughter announced she wanted to build her own kayak (she was about 14), I asked "all by yourself?". she hesitated and said "with your help", I told her no problem, I can show her what to do. The week before we were out at a gathering of people who built kayaks to share and see each others work, there was an attractive young woman who teaches greenland kayaking skills, and took time to show my daughter how to do a self rescue and roll in a skin-on-frame kayak. The instructor said she had built the kayak her self, that really inspired my daughter to build one too. I emailed her to get some dimensions and ask a few questions about the details. That is when I learned her boyfriend actually built most of the frame, she sewed the skin on it and painted it.
No matter, i was happy to keep my daughter interested in building a kayak. Turns out when it came time to actually build the frame, my daughter had more important things to do with her friends. she ended up helping me put the skin on it, and decorating it with a compass rose on the fore deck. Actually that was more than I expected her to do.