Former Clinton domestic policy advisor Bill Galston … “avoiding family poverty requires three things:
- finish high-school,
- marry before having children and
- marry after the age of 20.
Only 8 percent of families who do this are poor, while 79 percent of those who fail to do this are poor.”
Life's Best Advice 
And honestly I wonder if I will be encouraging my own children to wait until they are 30 to get married.