Let's face it, in many parts of the country we are still fighting the old stigma that shooting a doe is a blow to your manhood. For many, it's a macho thing.
In Nebraska, I still remember our old Big Game Manager telling me (late 80's/early 90's) they'd never be able to sell antlerless (doe) permits. Well, that was one of many wrongheaded things he said over the years. Nebraska now offers thousands and thousands of antlerless tags per season. I will say though that getting people to shoot does required (and is requiring) a lot of education.
And in some cases, the public darn near has to be forced to kill does by making that the only deer they can kill on certain permits (thus allowing the macho hunter to "save face"). In NE, almost every tag is good for one either-sex and one antlerless deer. I would guess that Earn-A-Buck would be a similar effort to force hunters to help trim populations (when optional programs in place before did not achieve that).
I personally probably would not like it, but only because I've had some fair success on nice bucks early and wouldn't want to bugger things up killing a doe. Plus, almost every season I kill more does than bucks anyway, (last year 2b and 5d) so I'm doing my part.
I know I've already gone way over my two cents, but I'll add one more thing. If I were a landowner farmer, every one of the hunters I let on my land would either kill more does than bucks or it would be his/her last season on the property.