If they've got the degree that's fine. I kind of agree with the army on this. You will generally not make E5 or better (barring battlefeild promotion) in your first enlistment. Not because you're dumb, just because you need some experience first. Its also why they commision 20 or 21 year olds as officers. They figure that 4 years of college and living on your own gives that perspective. I agree with this (mostly) and think if you've held down a job and gotten a degree you're ok. I was just responding to the idea of a cop that just graduated from HS, went to the academy and was out on patrol. I think we would all agree that that is "less than ideal" to put it mildly.
FQ13
And the point I was trying to make is that neither years nor education necessarily equals maturity. By the same token, I know many LEOs who have had FAR more experience handling weapons by the time they were 18 than some of their LEO counterparts had by the time they had been on the job for 10 years.
In short, I think that the danger comes in painting with too broad a brush. Afterall, much like not all college professors are knee-jerk liberal asshats, not all 20 year olds are inexperienced, immature mama's boys.

Have a nice day.