Times change, attitudes change, and (thankfully) hairstyles change. In the last few years we’ve been witness to one amazing change that is surprising in its speed – the idea that adults should be allowed to smoke marijuana, either for medical purposes or because they want to. There’s no reason to think this trend will ever reverse itself. In the interest of full disclosure, while it’s been more than a decade, I am intimately familiar with marijuana. I didn’t experiment with it, I majored in it in college. But, like most people, I grew out of it. I didn’t make a...