Let's do a survey here. Let's say you have a rich viet gal friend, just like Sha gua. And the gal's mother propose that you stay in Vn with her daughter and she gives u a 3 storey house in HCM City and buys a car for you to be taxi driver. Will you take that offer?
For me, i will not take the offer. I am a person that believes that a man shouldn't depend on the family of my wife, especially when my wife is a foreigner. If a man takes the offer, he will be looked down by the wife's family in the future. And knowing vietnamese culture, very soon all the neighbours will know that the foreigner man is damm poor and is dependent on the wife's family.