> large financial differences

I'm wondering, are you against dating outside one's social class, too? should millionaires date waitresses? or billionaires date millionaires? Doctors dating house cleaners?

>Brain development

How about dating outside one's education, so to say. Is it ok for a college graduate to date a highschool dropout? How about a well-educated, cultured, person dating a trailer park educated person? How much of an IQ difference is ok? 120 IQ dating a 90 IQ?