Re: Wealth redistribution
The way the USA does unpaid interns is at least fair.
From the student's pov its just an extention to the course, without fees, to be added to their loan. From society's pov it saves the company money, in the same way as offshoring a job, and reduces costs to the consumer.
Back in my day (1980s) the UK had a similar system for law degrees, you had to do a 1 (2?) year unpaid apprentiship at a law firm for which you couldn't get a grant or loan. So it made sure that only the right sort of people could afford to become lawyers - which kept the price to the consumer up.