Hey, what's this fence doing here? Eh, just pull it down and we'll figure it out as we go.
There is a saying that "regulations are written in blood". That's not a good way to write regulations. They end up being haphazard, both too strong and not strong enough. People rightly get frustrated at the patchwork. It's tempting to apply the experience and create a new, better set of regulations from a clean sheet.
But unfortunately, the loudest voices are usually the ones who are well aware of the price already paid in blood, and want to be the ones to get another dose of it. They will design the rules so that it's not their blood, but will take advantage of the blood of others until it gets banned all over again. The hard way, again.