Agree....there can be some bad ones. There are three general ways to become an officer; service academy; ROTC and OCS (Officer Candidate School). (Four if you also consider direct commission, which is rarely done for non-medical/law fields.) All of them have their bottom of the barrel graduates and those that get commissioned and just aren't the right fit for the position or their unit. ROTC is the largest source of commissions, so therefore probably also have the largest number of sub-par performers.

Also agree that at a young age this is the time for them to do something that may not be a lifetime career if they have a calling. The discipline and leadership skills they will learn can be useful in about any future job.