Yes, it is. TaxRelief suggests marriage before college, which makes more sense the more I think about it. Are most 18-22 year-olds mature enough to get the most educational benefit out of their (outrageously expensive) college years? Doesn't seem like it. I certainly wasn't, although I did get the Mrs., and then the B.A. :-).
One might say, When you're mature enough to be married, you're mature enough to make college worthwhile.
Me too. Consider how God designed the human body, and that marriages 100 years ago lasted much longer than they do today. The fact is that there is a causal relationship between length of schooling and the period of "adolescence," or extended childhood.