Why non-Indian women prefer to marry than just date Indian men?

In the comments to my post on Indian men and Inter-racial dating, a reader calling himself hopefloats, wrote this in his comment:

3. dating->marriage - In many posts non-indian women quote "oh..indian men are not into marrying non-indian women..so we dont date them".
Even if we assume this is true..I dont understand why this is a big deal for non-indian women in US/Canada.Most of them anyways have multiple relationships/marriages before they settle down with their final partner. Here are the possible reasons
a) either it's a politicall correct cover for the ethnic/racial non-preference.
b) or, only for marriage, they want indian men..not for dating/having-fun.

Both Indian and non-Indian women quite frequently have this complaint about Indian men - that they date and 'have fun' with women from different nationalities and ethnicities, but when it comes to marriage, they prefer Indian women. It is as if Indian men are held to a standard where they are supposed to date only those women whom they might marry.

The reality is that most people in the world have a double-standard about whom they will date casually versus whom they will choose for a serious relationship like marriage. Men and women who date and have flings, may do so with a variety people. But for marriage, they will have specific preferences and expectations in the potential partner. So, they won't just marry anybody whom they might date. If casual dating is your thing, there is nothing wrong in having such differing preferences - it is practical and pragmatic.

I think that we hear complaints about this 'double-standard' quite often about Indian men from non-Indian women for two reasons. These reasons are somewhat different from those listed in hopefloat's comment above (I'm not saying I agree or disagree with his comment). The reasons I have in mind are:

1. Those who are affected are the ones who'll speak up more. The non-Indian women who genuinely fell for the Indian men and/or who were hoping to have a serious relationship with Indian men, are the ones most affected by Indian men preferring Indian women for marriage. So, obviously, they are the ones we hear from more. The women who are only dating Indian men casually are not too bothered by this, because hey, they are only in it for the fun. So, we don't hear anything positive or negative from them.

2. I suspect that there are not too many non-Indian women dating Indian men casually, just for fun. I don't have scientific data or statistics to backup my claim. However, it is common experience that most young people are not usually into experimenting with foreign stuff - even in matters such as food and entertainment. Young people usually prefer stuff they have grown up around, are familiar with. We are not done fully experiencing and experimenting with familiar stuff until we are almost into our 30's. Only after that, we start to look at what else is out there. So, by the time non-Indian women start to look at what else is out there and discover that interesting Indian man, they are past the phase of casual fun and are at an age when they want something more serious out of relationships.

There are no doubt exceptions to what I have stated above, but it is true for the most part. Reading the comments on this blog under posts such as Indian men and Inter-racial dating and Dating Indian Men II does show that most non-Indian women who are interested in Indian men are at a later stage in life when they are more interested in settling down in a serious relationship or marriage, than in just dating and having flings.