Trevor is getting ready to go to a school dance with a girl he likes, but he feels self-conscious because his voice is deepening and he is beginning to grow facial hair. While he is most worried about sweaty palms and stepping on his date’s feet as they dance, his dad, Sam, has also noticed the physical changes in his son and that he seems more nervous than usual. He decides to approach him about it. What is MOST likely to be Sam’s concern?