A doctor can take up a mop and start cleaning straight away.
A cleaner needs to study medicine for a couple of years,
understand what the hell she is studying, pass the exams, do her
housemanship for a few years and then be considered qualified to
look at sick people.
an undergrad at NUS Yong Loo Lin School of Medicine, study 5
years to obtain their MBBS and 1 year of Housemanship. after that
they need to serve 5-6 years of bond as their studies are heavily
subsidized by the government. they are being rotated to different
hospitals every 6 months in different departments as a medical
officer. if they want to specialise, they need to go into 3 years
of BST and 2 years of AST before becoming a specialist. There are 3
kinds of specialists, associate consultant, consultant, senior
consultant. AC is sort of a newbie consultant. to progress into a
consultant, you need a few years of experience of being an AC
first. to be a senior consultant, you need at least 5 years of
experience being a consultant.