What do you think about the validity of andragogy as a learning theory?

I asked because there are two ‘camps’ out there – those who feel Andragogy meets the definition of a learning theory and those that feel that it is just a method of teaching but not a theory in and of itself.

A theory (per Websters and your textbook) is “explains what a phenomenon is and how it works”. So to agree that andragogy is a theory…. You would have to agree that is explains the phenomenon of adult learning and explains how adult learning works. From your text “a theory is a comprehensive, coherent, and internally consistent system of ideas about a set of phenomena.”

Do you think andragogy meets this definition?