In high performing countries, principals are working with highly qualified teachers who come from the top tiers of the graduation range, who have been rigorously prepared in universities and through supervised practice in schools, and who remain in education for all of their careers.
My first part-time job gave me the smell of earning money when I worked in a village chemist aged 14. I loved helping the pharmacist with prescriptions and on the shop floor, with its glamorous make-up aisle.