That seems harsh to say he is selfish or scared. Do you know the kid or his family? To me that seems like a shot at a child.
I think adults should cut him (and all kids) some slack, especially when he has not done anything wrong. It would be one thing if the rumor was he was dealing drugs, had sexually assaulted a woman, or was involved in academic misconduct. This rumor is that he is simply considering transferring to a prep school. Maybe he thinks he will get better coaching. Maybe he wants to experience another part of the country. There could be any number of reasons he would consider doing this that do not remotely involve being selfish or scared. Additionally, to leave home at 17 and move a long distance from your parents doesn't really seem like the actions of someone that is scared. It seems to me that takes some courage and commitment.
When I was his age, I made average grades (when I should have made excellent grades based on my abilities), did not participate in school activities and was not very productive. I was drinking and bordering on trouble. Trae seems like he has his act together a lot better than I did at that age. I admire the young man and wish him well.