Good habits: Holding hands (especially with a loved one)

[ArMaP]

If you want to help someone in distress, offer affirmation of your bond, enhance your connection to them, or even just show good will... touch them.  You will likely both benefit from the contact.

As usual, it depends.
Some people do not like to be touched and we would only be increasing their distress.

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While certainly not a universally applicable chart, I found it interesting.

Not even European, the social differences inside a country are enough to challenge that chart.

PS: the link doesn't work.