Different cultures have different standards and customs. Although it would be preferable to not do something illegal because of that culture. Like beating an innocent (according to US law) woman for example.

I'm assuming the parents were visiting anyway. Seems quite silly to fly across the world just to beat up a lady, even if she isn't making her husbands sandwiches.

Culture isn't limited to the geography. Same as I'd say the culture of Americans in the south is very differenr than say, the Pacific Northwest. Culture encompuses many variables, not limited to where you were born. The rest I agree with 

Would you please unknot your panties or something? I was talking in a general common sense way in how all couples should act before they should marry. 

Nice strawman stats. Americans don't really get their families to help them beat their wives. It's a cultural thing. What are you trying to be sneaky about with this? Can't you just call a spade a spade? 

While it is frowned upon in the US, rates of wifebeating are actually higher than they are in India. The US has a rate of 33% compared to India's 20%.

Even worse is the UK's 45%.

It's also interesting to note that the US and the UK are among the only two nations in the Western world where beating children as a form of discipline is actually still legal. It's difficult to say that child beating causes wife beating, or that beating is so common in those countries that it is impossible to ban it.