Why do people smile at babies they do not know?
Some strangers arrive with instant permission to be loved.
Adults ignore strangers every day.
Yet babies are treated differently.
People smile, wave, and make funny faces without hesitation.
However, the hidden mechanism is Courtesy Visibility. Babies express emotions openly and depend entirely on the goodwill of others. Therefore, social caution relaxes around them.
The interaction becomes unusually safe. There is no competition, no expectation, and no need to impress. Warmth can exist in its simplest form.
This creates a curious exception to everyday life.
The less a baby can contribute socially, the more freely affection flows toward them.
Perhaps people smile at babies because innocence feels rare.
Or perhaps they smile because, for a moment, kindness becomes effortless.
