I think I just might stay in school for the rest of my life....

[Persistent_Study]

I've heard a similar argument, that it is to weed out under-performers, made in regard to calculus, yet being a doctor does not require more than basic arithmetic in terms of math knowledge. So it would seem like a problem with these types of requirements is that not only do they eliminate the "uncommitted", but the "sufficiently committed" too. No system is perfect in my opinion.