A new report by the Austin Institute for the Study of Family and Culture unpacks American attitudes about faith, family, marriage and more. Researchers gathered 15,738 surveys from adults ages 18 to 60 to get a sense of changing attitudes regarding topics like cohabitation 44 percent think its OK, 30 percent neutral, 25 opposed to whether marriage is an outdated notion 66 percent say no, 10 percent say yes.