i remember once a priest telling the congregation to be sure to extend the sign of peace with a handshake especially to the elderly, as it might be the only human touch they receive all day! yes, lack of hugs would be difficult for most of us but hugs from friends can substitute for hugs from spouses when necessary. babies do not thrive unless they are held. sadly, due to fears of flu etc the sign of peace now is often just a nod but at least that is recognition from another human being that we exist