Earlier quoted context omitted.
Kids are good at it. Adults less so, because of… well, sex.
Its also quite cultural. Its normal for men to hold hands when walking in India, Nepal for example. At first it looked ridiculous to me...having grown up since then I think its Western civilization that's a bit ridiculous in that aspect.
I feel like traditional culture is the only thing that says "you shouldn't do that", which seems equally ridiculous to me.