Again, you're talking about what might happen. If something goes wrong you address the problem. Your argument could be applied to any law: "We can't let towns a

Again, you're talking about what might happen. If something goes wrong you address the problem. Your argument could be applied to any law: "We can't let towns and counties and states to set speeding limits! If they do, the next thing you know they'll limit things to 40 mph, and after a while 30 mph. And poof! One day you'll wake up and over 5 mph would get you a speeding ticket!"