When I was a dancer - if one of us was injured, they made us come & watch the practice because apparently your body does gain knowledge just by watching.
But that was with a baseline knowledge already.
I think it would help, learning about swimming before doing it. More so if you are already physically active in some other way though.
+3 or so, benign neglect, with unavoidable trauma. My dad died when I was a teenager and that sucked, my mom fell apart, also was diagnosed bipolar and I didn't enjoy being a child at all, but do honestly believe my mom did her best, and we were fed, housed, schooled, and not interfered with much beyond that.
What score would the over-involved helicopter parents of my kids' friends land on this scale, though? Those kids aren't spoiled exactly but certainly not neglected.