Bangladesh, June 12 -- For decades, the dominant narrative surrounding American society was one of increasing moral liberalization. From attitudes toward marriage and sexuality to gambling and personal autonomy, successive generations appeared more willing to embrace behaviors that previous eras viewed with skepticism or outright disapproval. Yet new findings from Gallup suggest that this trajectory may no longer be inevitable. Instead, Americans may be entering a period of moral reassessment.

According to Gallup's latest survey, public acceptance of several social behaviors has declined noticeably over the past year. The most significant drops involved having children outside marriage, birth control, gambling, sex between teenagers, an...