I was visiting family, many of whom would be described as traditional working class, and many had children with partners with never considering marriage. The reasons seemed to be that of apathy, thinking marriage was archaic and irrelevant ('piece of paper') and importantly cost which to many young people is exorbitant.
The older generations were in despair for the daughter's without the legal assurance at least of marriage when there are children and also a little sad that would never see their children married possibly with the traditions of walking their daughters down the aisle if a church wedding for instance.
Middle class families I know are cognizant of the fact that marriage legally offers a financial bedrock to a women when starting a family and many with generational wealth can spend money on a wedding that includes all the paraphernalia, dresses, suits, venues, meals, disco......
Has there now become real divides in the way we view marriage?