And so they should. In Botswana, there seems to be a craze for social hugging, the Daily News says.
"It seems that it has substituted the handshaking greetings, and it has raised some concerns to some people who find it strange," the article said.
Some of the people interviewed felt that hugging should be reserved for lovers and family, while a young woman complained that men used hugging as a cover for groping.
We humans aren't hormone machines, after all. Context is everything, and we won't get all the biochemical goodies that can come with touch if that touch isn't welcome.