I was taken aback at Scooby's comment too. Far from being "blue collar" workers, when I joined the vast majority of us were smartly dressed, many wearing suits and ties to work. Contrast that with some I worked with in my last years at West Drayton - scruffy individuals coming to work with their knees hanging out of their jeans!!! Were they really professional "white collar workers"?
Air Traffic Control is a great "leveller". I possess just 2 GCE O levels but have worked alongside ex-RAF officers, failed pilots and graduates. Made no difference - we were all equal in the job. I have no problem with graduates - one of our sons has a degree - but please understand that having a degree will probably have no bearing on whether you finally obtain a licence and validation(s).