But your mother did. At least you noted as much when reciting the displinary traits instilled in you as a child awaiting a makeshift fashion show. That is not a slight on her, the point is, she was lucky no harm came to you and your siblings while she was away from you. In this instance, as the boy was playing near a mirror, his mother was not as lucky as yours.
What harm would have come to us sitting on a bench inside a store? We sat still. We were NOT playing. We whispered when we spoke to each other. I'm sorry that you can't see the difference between kids in the 50's and now.