Hard to say how much brother is doing

my brother is very superficial he's all about how people look he likes to make comments about whether or not people are attractive I've been guilty of it a few times because it's necessary to push buttons and see how much you'll do and how far you'll go. because he is so superficial because he is so vain it's weakness he's unable to see that it's a weakness but we'll just go ahead and continuously try to teach him this lesson and see what we end up with