If my friend was trying to get married in the Catholic Church, but they weren't sure they wanted to say they'd raise kids Catholic, they're trying to talk to a priest about that, if that happens and the priest doesn't make them promise that, would it be a licit/valid marriage? I'm not sure but I think his or his fiance's family wants them to marry in the Church.
Any pointers on how I can bridge the subject privately to him? He stated that he saw no difference between a Catholic Mass and a lutheran service when they were scouting churches to be wed in. I am going to offer to give a brief but fair comparison of the CC and the lc if he would like to hear it. He think we "believe all the same things" so that's disheartening.
I couldn't think of the words at the time when he said that in person... but feel the need to at least offer an apologia now.