well for me personally i needed a lawyer and couldn't afford one, so decided i'd go to school and learn the basics of law and procedure so i could help myself and eventually help others. for me (well for everyone), law is power. if you know your rights and know how to read contracts and apply for stuff, then when you get into trouble you'll at least be able to figure a way out or know who to turn to.
what interests me about law is that it's just an idea. it's just words and opinions that everyone follows along with, till new words and opinions come along.