The minimum wage for younger workers - why is the level different?

...minimum wage, which has lower rates for 16-17 year old workers and 18-20 year old workers than those aged 21 and over. It is a question about to become more...
...minimum wage, which has lower rates for 16-17 year old workers and 18-20 year old workers than those aged 21 and over. It is a question about to become more...