Let's see, we bust people for drunk driving 23 times and don't do anything but extend the suspension of their license. I know! Let's lower the legal limit so we can bust more people for the same thing. Doesn't actually address the problem that existing laws aren't being enforced, but let's us talk about how tough we are on crime.

Now we have a glaring example where people didn't do what the law already says they can and should do. I know! Let's write more laws giving them permission to do even more things ... which they still won't do. Unless they want to.