Please, please don't go into teaching if it's not something that you feel really driven to do. The education system is full of unmotivated seat warmers just there for the paycheck, and missing the whole point of how crucially important teaching is.
While I agree that you shouldn't just pick teaching as your career on a whim, like so many other things in life, sometimes you just gotta try things out to see whether you're good at them and enjoy them. The hard part is moving along when you know you need to.