If you just needed the skills to pass the bar, two years would be enough. But if you think of law as a learned profession, then a third year is an opportunity for, on the one hand, public service and practice experience, but on the other, also to take courses that round out the law that you didn't have time to do.
America is known as a country that welcomes people to its shores. All kinds of people. The image of the Statue of Liberty with Emma Lazarus' famous poem. She lifts her lamp and welcomes people to the golden shore, where they will not experience prejudice because of the color of their skin, the religious faith that they follow.
At Cornell University, my professor of European literature, Vladimir Nabokov, changed the way I read and the way I write. Words could paint pictures, I learned from him. Choosing the right word, and the right word order, he illustrated, could make an enormous difference in conveying an image or an idea.