If you see that a friend is about to make a misstep, don’t intervene. Just let them do it. First of all, you could be wrong in thinking what they’re doing is a mistake. Second, you shouldn’t inflict your opinions on other people who are trying to learn. If they’re going to learn, they have to make a few mistakes and have a few accidents once in a while. It’s all trial and error. So step away from the controls and just mind your own business. They’ll be fine.