Hunter license can be used for a number of things, and people take advantage of it. Governments all over the world clearly know about it but they wouldn't take any necessary steps to stop it. Why?
The Hunters are considered the reserve forces of the country, and they will have to answer when they are called to duty in case war breaks out and they are needed to protect the citizens. Then, these people would be left with only two choices. Either retire voluntarily and cancel the benefits of the license or answer the call of the nation.
Anyway, as it would be tough for WHC to pay for them if they show up in large numbers, they kept out the lowest class Hunters from this war and hired the higher class Hunters.
