Do drunk strangers hold each others hands at the bar?

Do strangers hold hands walking down the street when they are just stranger who just met at the bar? I saw this male and female walking down the street after getting out of the bar. I was confused why would someone let strangers to hold their hands as a sign of affection if they aren't even couple? Do you think they were couple or is it common for strangers to hold hands each other when they go hack to someone's place? If it's just a one jught stand why would a guy let someone to hold their hands as if they are close friends or something? I want to know how people at bar behave and what's appropriate and what's not. Or I'm just confused why would someone holding hands when they don't even know each other.

Do drunk strangers hold each others hands at the bar?
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