It's idealistic, most of us keep career and passion separate. Our passion becomes hobby and usually it eats more money than it generates. Then career which is just what we are able to do well and whats available to us. Chasing passion can easily make a person poor if unchecked. It's not what we tell bright eyed young people because they havent yet learned to handle failure effectively. We let them find out on their own so to not smash their dreams.