I really appreciate and like Vivi for her presentation. We pray/respect our ancestors, without them you won't be where you are. Thanks to Master Sieh. Over your place, you are lucky, they just don't eat "pork", but in Islamic country, if a man married a Muslim lady, he has to follow the lady's religion/changed his name (according to the religion) and give up his own identity (no more Chinese name/surname).
Yes, you are right. So preferably, it is best to be of the same religion and culture because there will be lots of conflict within the family if they are different. For e.g. one may want to baptise his or her child(one parent is a christian) but the other doesn't want to (one parent a non christian) etc. So there will be lots conflicts. Unless, one is ready to tackle all the hurdles. If not, better to stay clear from it.