There are some places in Illinois where I hunt to where they make it Quality Deer Management and have to have 4 on one side, others state must shoot a doe first. My personal opinion, I don't see where we need a "law" to enforce ethics. As a hunter education instructor I understand the different levels hunters evolve to. I hunt for several reasons, one of which is conservation, I find it hard that I see an animal that needs to be "culled" from the chain, but cann't because of a "law".
When I take a new bowhunter hunting, I tell them "take the first ethical shot you can, get that first deer under your belt, to experience the whole process". I have been blessed and had my share of nice bucks, but to me any animal with my tackle is a "trophy". I think we need to further instill ethics not have more regulations.
Let me show you how misguided some area's are. This year in central illinois, where it is legal to harvest two bucks (no restrictions and unlimited does, state law). They decided to say for the first 15 days of archery season, do not shoot a Doe, in five counties. Two of the hunting area's in these five counties, you had to harvest a Doe first, and/or the Buck must have four on one side. I went really deep with discussions with DNR, CPO and even biologist. No one could give me a deep explanation of the why, this came about. I asked "Is this a way to "legally" restrict our hunting rights? Why not restrict the shotgun hunters?" Again no deep explanation of the why. I think that if we are going to restrict game, then there needs to be a sound explanation for the hunters. I see a great many hunter's shrug their shoulders and say "all well". I say, no stand up and ask "why", its are money funding everything.