So how does this effect the employability of students from these Colleges ? I am assuming here that a combination of College, Degree and Grades determine the s

So how does this effect the employability of students from these Colleges ? I am assuming here that a combination of College, Degree and Grades determine the student's job prospects. Now an employer might value students from a particular college less as they don't have grades. Of course, everything comes down to student's actual capabilities. But then why should a Degree from a college be required for a job when grades aren't necessary. One could simply do courses for a lot of professions, learn on their own and apply to a job. May be after some professional certification that's not tied to a degree. Note - Not applicable to things like Medicine or Engineering, but can be to may other professions.