In Argentina, when I was growing up, we vacationed in a beach town called Villa Gesell.
I was 5 and wondered on the vast sand and got lost. I started crying and this man saw me and asked me what was wrong with me. I said I couldn’t find my parents. Then he put me on to his shoulders. I remember him being very tall. And a crowd formed around him and they all started clapping. I thought they were trying to cheer me up and laughed. But that wasn’t the point. This was a system that had spontaneously developed to unite lost kids with their parents. Mine appeared instantly. The combination of the loud sounds and visibility was very effective.
I am in the USA now. With my kids. I know nobody would do something like this here. In the US people are afraid of picking up someone else’s child putting him up his shoulders. It’s hard to explain but society has less means to deal with those who are lost. And this is a general statement.