Etude sur le recul de la religion aux USA.

Most Americans today continue to be raised in a religious denomination or tradition. Only 12 percent of Americans report being raised outside a formal religious tradition. Half (50 percent) report being raised Protestant, close to three in 10 (29 percent) say they were raised Catholic, and significantly fewer Americans were brought up Mormon (2 percent), Jewish (2 percent), Muslim (1 percent), Orthodox (1 percent), or something else (1 percent).

However, there are significant differences in the religious upbringing of Americans across generations. Young adults (age 18 to 29) are far more likely to have been raised without religion than are seniors (age 65 or older). Roughly one in five (22 percent) young adults report that they were not raised in any particular religion, compared to only 3 percent of seniors. Notably, the proportion of young adults who have always been religiously unaffiliated is nearly as large as those who have left religion to become unaffiliated.

A similar pattern is evident in religious activities in the home. About one in three (32 percent) young adults report that they said grace or prayed with their family at meals at least once a week during their childhood. Nearly half (46 percent) of seniors say the same. Young adults are about twice as likely as seniors to say they never said grace or prayed at mealtime (38 percent vs. 21 percent). Young adults are about as likely as seniors to say they read scripture or prayed with their family at least once a week growing up (26 percent vs. 30 percent), but young adults are significantly more likely to say they never did (44 percent vs. 32 percent). Young adults are also more likely than seniors to say that they never participated in religious holidays in their home growing up. Nearly one in four (24 percent) young adults report never celebrating religious holidays, compared to 11 percent of seniors.