[greenmountin]

This is an interesting difference to bring up. I would trace the push for high graduation rates in the US to its inclusion as a parameter in the canonical US News college ranking equations. The oft-stated reasoning is that a top-flight college that allows even 10% of its students to leave without a degree in 5-years is failing them somehow.

To some extent, this is true -- I have personally seen brilliant friends drop out of a stressful college when clearly the university was not serving their reasonable needs.