It's much easier and faster to pass a law with loopholes that still removes 90%+ of the bad stuff you want to remove. If you try to solve 100% of the problem y

It's much easier and faster to pass a law with loopholes that still removes 90%+ of the bad stuff you want to remove. If you try to solve 100% of the problem you have the bad stuff on the market for another 10 years while the details are sorted out. Or you just ignore the details and ram through the bill, and find out about a lot of unintended consequences and have a mess. Ideally, politicians would pass the bill with loopholes first, and then follow up and try to close them to finish solving the problem. But that's one of those things like refactoring and code cleanup that you always mean to do and never get around to.