You don’t want to be in a committed relationship only to then realize that your family values completely clash and you neither want nor expect the same things.
While marriage may not be part of the conversation when you first start dating, keep these things in mind as the relationship progresses.
Why can't they just accept their children's dating/marital partners?
Part of this lies in the ethnocentrism or racism involved.
Yes, Asians can be racist if you don't already know it.