The ideal choice of caste for a date is someone who is outside of caste. That is someone who rejects the notions of generational entitlement, of a rigid caste system such as is found in the US, recreational spending to "keep up with the joneses," rejects social strivign, and who rejects all of the snobbery that goes with it. Such a person is more likely to value knowledge, cultural, artistic, or religious/spirtual pursuites to material wealth. She is an independent thinker.
Caste is a big deal in the US. Sociologists have shown that the division between the rich and the poor is wider in the US than it is in England and many other developed countries. The American Dream, defined as the ability to become prosperous despite how low ones birth, is a myth. There is more upward mobility in England, a country that still has an aristocracy.
Upper caste American Women tend to be sheltered, ignorant, and self-entitled. For the most part, they only marry among themselves. They don't stand on their own two feet but on their fathers'.
Middle class American Women take this trend further. Sociologists have found that the Middle Class is even more snobbish than the upper caste. They go to extremes pretending to be upper class. They go into credit card debt buying designer clothing and handbags. They buy McMansions they cannot afford. They go out of their way to belittle anyone who does not conform to their expectation of social striving. The vast majority of middle class seek to "marry up." They author books like "Smart Girls Marry Money" and follow guides on "how to marry a millionaire." This is ironic because in many cases, their parents or grand parents grew up in poverty. It's like they are trying to compensate for the fact that a single economic downturn could take it all away and turn them into the underclass. In fact, it's already happening.
I've dated a few working class women. Their habits and behaviours stand out. They watch television all day, shop at walmart, and eat at MacDonalds. They haven't gone to college and do not read. They wouldn't be caught dead on a bicycle because bicycles are for poor people who cannot afford cars.They don't know how to hide their background, and most won't be bothered to go to the effort to learn.
Having said that, I've dated more upper caste women than middle class or blue colar. Most of the upper caste women I have been with were not American. Besides caste-free women, my preference is foreign upper caste women. They tend to be more open minded, knowledgeable about how the world really works, and educated than theri American sisters.