I would add that their is strong new money elements to the issue
If somebody is from an affluent background our middle-class family they will look for a wife or a girlfriend
Who is social accepted by their hierarchy and who is somebody who would be a good partner
For somebody from a working class background who becomes welfare they don't have the social pressures
To have a wife or girlfriend of equal status for me I am from a working class background like the rest of my family
And I don't have the social pressure to have somebody from higher social and economic background
As for the term value it is partly due to the rise of consumer culture making relationships commodities
As what people consider valuable that can vary individual to individual but young people tend to be stereotypes of what it means to be a man or a woman
It's when they get older they start to change