The New York Times has a nice piece about why people continue to hold hands in public, when so many other romantic gestures have disappeared with the sexual revolution:

To hold someone’s hand is to offer them affection, protection or comfort. It is a way to communicate that you are off the market. Practically speaking, it is an efficient way to squeeze through a crowd without losing your partner. People do it during vigils, marches, weddings and funerals.

Holding hands remains a sign of intimacy between friends and lovers, couples and family, keeping two people together as they navigate the world around them. It as powerful a gesture today as it was two hundred years ago.

Personally, I hope it never goes out of style!

You can read the full New York Times article here.