You Need A Degree To Get Married?

Not actually, but it does appear that those with college diplomas are more likely to get married.

Why do you think this is?

I do not accept the findings unless the raw data is shown.

Marriage V Cohabitation?
Skeptics of the conclusion suggest many couples never bother to officially marry.

Or can afford a modern wedding.
And are also suspicious about the small gap, 35-45. Shouldn't it be 22 to 45?