Umm...thanks? I think?

Last week one of my grade six boys randomly came up to me and said "I think you may have a few split ends in your hair." That is probably the most random/strange comment I've gotten from a student. I honestly did not know how to respond to that. Then, today I was helping out one of my other grade six students and all of a sudden she says to me "you have some gray hairs." I think I'm going to shave my head.