My younger brother wants to drop out and I do not know how honest to be

My younger brother is 19 and in his first year of college. He called me last night saying he wants to drop out. He hates his classes, has not made close friends, and feels like he is wasting money. Our parents are very “finish what you start” people, so he came to me first. I am 26 and graduated college, so he thinks I will understand. The thing is, part of me thinks dropping out might actually be okay if he has a plan. But right now his plan is basically “come home and figure it out.” He has always been smart but avoidant when something gets uncomfortable. I do not want to sound like our parents and lecture him. But I also do not want to validate a decision he might regret in six months. He asked me, “Do you think I am stupid for wanting to leave?” I told him no. But I did not know what else to say.