Imagine if retailers or business hired high school children between 16 and 18 and had them work the last two hours of the school day. They would need to maintain a C average through their school academics. You could hire them at the beginning wage they would also get a two hour head start in their workday. Then they work another 4 to 6 hours that day at the same business. Then after high school they would have a chance to advance in that business. The business gets a work and the economy benefits with a person contributing to society.
