yehudayona beg to disagree. maybe in the US but in England many get married in”United”synagogue which goes according to halacha. the same shuls get a thousand on rosh hashanah yomkipur and 50 on a reg shabbos. they are not necessarily frum. i assume similar in south africa and some sefardi shuls in the US. the kids do it to please their parents and later move and are in a more reform or conservative shul by the time they get remarried. trust me thats what happened to my mother
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