Im against mandatory. If you choose to voluntarily do it then awesome. I pay for my license and tags just like other hunters. I dont tell people what to shoot. And i would like the same respect. Me and 3 other guys hunt a parcel of land and we are overjoyed when someone shoots a doe or a spike or a 3 point. With that said we have all seen a button buck the size of a dog running around. Most of us have had him at anywhere from 5 to 15 yards broadside. We have said dont shoot him. Not because he may grow into a huge buck, but because it almost seems too easy.
Not sure about your 1 1/2 year old bucks, but here they are smart. For us its about the hunt and the meat. We always welcome the big buck but we dont focus solely on him.