Teaching Morals

I recently read an article by an ethics professor about whether or not he believed that ethics and morals were something that could taught. He argued that a better question was whether or not they could be learned. It was in response to a writer for a college newspaper saying that if a person didn't have ethics or morals by the time they reached college, they would not develop. Higher education does give students a chance to further delve into these ideas, but aren't there the ones that don't seem to care about them either way and suddenly grow up, have kids, and have morals? Can you develop morals after not abiding by them?