2009 UTC The caveat does help and I notice the article is better researched and written than it was when I commented two years ago However observationally I do see an ethnic component My town is a predominantly middle class suburb of 46 000 with a much higher percentage of blacks Latinos and Armenians than the U S or state averages These middle class families tend to be more multigenerational than white middle class families thus I think it is more acceptable for white middle class families to be multigenerational here 03 11 11 October