Nice to meet you. I guess I should have checked my son's friend's gear ahead of time. I assumed he was equiped. It was definitely the right thing to do as his face was still red when we got home. It was a learning experience for all.
Thanks for the green square. In the end it was simple - I would not have wanted to be stranded at the Sawyer River Road trailhead with a flat. I needed to help if I could but it was still upsetting to see their lack of respect for the property of others.