Absolutely right. In fact, before he came on bord, I bought him a small sized one that has the "keep the head out of the water thing" and a handle, but somehow my kid was not inside it!!!
Sorry about that. Can't tell you why he wasn't wearing it,and have no excuse. If it helps and trying to redim myself we sailed 2 months with him and he allways wore it when outside.
I am ashamed....