I don't think that was the cause of the bubble. I was a 90s kid. My parents left me alone at home and let me play outside wherever. My wife's parents let her sw

I don't think that was the cause of the bubble. I was a 90s kid. My parents left me alone at home and let me play outside wherever. My wife's parents let her swim in a river alone, or with friends. I wouldn't let my younger kids swim in a 1.5 feet deep pool for fear of drowning.