Demonstrating the ability to go four years without getting kicked out of school for discipline problems and/or getting incarcerated. The GED is sold heavily to

Demonstrating the ability to go four years without getting kicked out of school for discipline problems and/or getting incarcerated. The GED is sold heavily to inmates as a way to get back on their feet after they're released, so the people who end up taking the GED are preselected to have severe self-control issues. Learning HS material doesn't correct this: the reason nobody wants to hire them is because they were in jail, not because they don't know trigonometry.