It comes out in all kinds of ways. In mundane tasks like cooking, or music, or art. Or, in a few cases, programming.
Over a long career I've come to agree with Asimovs premise. You cannot simply tell someone to create. They either have it or they don't. Equally you cannot tell a creator not to create. They will, whether you like it or not.
And yes, it's a very rare attribute. Most people can be trained to do a task really well. Very few can create.
Lucky indeed is the creator who gets paid to create. Having a job with the freedom to create is the ultimate success.