White people in general are boring rule-followers so they create systems to reflect that. Getting married fairly young and buying a home is pretty basic stuff for them.
I agree with the poster who said most black women are not prepared for marriage at 24 unless they came from marriage and their mothers prepared them for the responsibility. Black women tend to be independent in mind, body, and spirit and marriage is pretty much the antithesis of that.
Having said that, I think if black women create a culture of marriage prep/finishing schools we could shift the odds in our favor.
Not the "divest" or "pink pill" stuff but training around how to develop healthy co-dependencies, win by losing, save the criticism for the RIGHT TIME, anticipate a man's needs, etc. These are the areas I think we as black women struggle with and it prevents many of us from being seen as more than just a headache/drama.