I went to a gathering recently that was meant to be a professional meeting but "kid-friendly." It was at a lake. I was picturing we'd meet and talk by the edge of the water, the kids playing at our feet. What the organizer had in mind, it turned out, was for us to be sitting at picnic tables with maaaaaybe a partial view of the swimming area. My kids are 5 and 2.5, neither can swim without floaties. I opted to stay by/in the water so I could keep an eye on my kids, and I missed the meeting (except when I brought the kids over to get snacks.) A few people seemed really perplexed by this, as though I was being a helicopter mom or something. "There are two lifeguards," they kept telling me. Ah, you mean the two teens who look half asleep and keep chatting with each other instead of watching the water?
To me, lifeguards are IN ADDITION to parental supervision, not instead of. I thought this was a basic fact. Huh.