Finally, people behave better if they know their friends are observing. Friendship is based, in part, on common tastes and interests, but it is also based on mutual admiration and reciprocity. People tend to want to live up to their friends’ high regard. People don’t have close friendships in any hope of selfish gain, but simply for the pleasure itself of feeling known and respected.
It’s also true that friendship is not in great shape in America today. In 1985, people tended to have about three really close friends, according to the General Social Survey. By 2004, according to research done at Duke University and the University of Arizona, they were reporting they had only two close confidants. The number of people who say they have no close confidants at all has tripled over that time.
People seem to have a harder time building friendships across class lines. As society becomes more unequal and segmented, invitations come to people on the basis of their job status. Middle-aged people have particular problems nurturing friendships and building new ones. They are so busy with work and kids that friendship gets squeezed out.
So..[if I could live in a] fantasy world in which I have $500 million, I’d try to set up places that would cultivate friendships.