My daughter is in 1st grade (6 years old) and the neighbor mid 50s watches her after school everyday. They don’t have kids and offered to watch her everyday. I’m not sure how old this kid was, he ranges from middle school age to high school but he was over at their house as well. I think he’s some family member, anyways I guess he was swimming and was doing huge strokes from one end to another and the neighbor commented how he’s showing off for my daughter and likes her. My daughter went into another room and did homework and had no other interaction till I picked her up. Should I be worried or is that just harmless?