Feeding chicken food to quail is equatable to raising a human child on top ramen noodles and nothing else. They'll lay just fine on chicken feed, still doesn't mean it's humane to feed. At the point you decide to raise animals that evolved on the other side of the planet, you have a responsibility to feed them as their biological needs dictate.
Another big downfall to chicken food is that quail roosters do not need much calcium at all, and the calcium levels in chicken feed can cause them organ failure.
Another big downfall to chicken food is that quail roosters do not need much calcium at all, and the calcium levels in chicken feed can cause them organ failure.