SAN DIEGO (UPI) -- A California psychologist says young people have become increasingly indifferent to the impression they make on others. Jean Twenge, the author of "Generation Me," teaches at San Diego State University. She gathered data from surveys taken between 1958 and 2001 by more than 40,000 youngsters. They featured questions aimed at whether the respondents always said "please" and "thank you" or were careful to dress appropriately. Twenge says that 76 percent of children aged 8 to 12 in 1999 were indifferent to social approval, up from 57 percent in 1970. Among those who were already in college...