Second, older Americans stay in the workforce longer than ever, and many of them wind down their careers in office secretary and retail jobs, which used to be the province of 16-year-olds in the summer.
the position of working for an expert to learn a profession
Fourth, companies have caught on to the fact that if they want to hire teenagers, they don’t have to pay them, at all: There has been an extraordinary rise in unpaid internships over the last decade.