less Evan Tracy, left, and Sasha Laurel smile as Spy Emerson, right, and others cheer for them as they emerge as the third couple of the evening to use the truck during the opening night of the Hook-up Truck, a ...
more Spy Emerson, center, reads the terms and conditions to Evan Tracy, left, and Sasha Laurel before they use the truck as others listen during the opening night of the Hook-up Truck, a "participatory art" project by Spy Emerson May 2, 2014 in Oakland, Calif.
People are marrying and beginning families at ages later than previous generations while becoming sexually mature at an earlier age.
As a result, Garcia and other scholars argue that young adults are able to reproduce physiologically but are not psychologically or socially ready to 'settle down' and begin a family.
A hookup culture is one that accepts and encourages casual sexual encounters, including one-night stands and other related activity, which focus on physical pleasure without necessarily including emotional bonding or long-term commitment.