Public perception: nurse = cleaner

"Many people are unaware of the actual training an individual has to undergo prior to receiving the title "Doctor", "Surgeon", "G.P." or "Nurse". Indeed, most assume that these titles provide them with the security and assurance of years of study and training before such individuals are allowed to actually administer to the general public.
The majestic title 'Nurse' used to conjure up images of the "all-seeing all-knowing Sister travelling the corridors" has been replaced with the lowlier impression of a teenage girl mopping the corridors before starting her next shift at MacDonalds. This perception is generally incorrect! .
Due to the common similarities between the uniforms worn by each it is very easy to assume that these care-workers are in fact nurses and that your loved one is being cared for by a trained professional when they may not."

Ref:http://www.clinical-medical-negligence-injuries.co.uk/negligence-nursing.html