M.L.
My daughter was two last summer. I had two 5 year olds as well. Caroline wanted to get out, walk around, and be free to do what she wanted to do. So, she always wore a life jacket. She just called it her "jacket" and put it on before we went to the pool. I always watched her but I knew that if she fell in outside of my reach she would be safe. I felt better and she was used to it. Kind of like seatbelts are today.