The whole point is don't marry a girl you don't know. If you are marrying a girl you have no idea about, then yes she might fck her boy infront of you and file for a claim. How often do you see that in Nepal? Let's be honest. I am just suggesting him not to dive into a committment until he is comfortable enough. 
You guys have been in western world too long and forgot how your women are. Good luck with that mentality brother!!