I believe UX design is an intersection of different fields, including art, engineering, experimental research, interpersonal skills, and several others. UX design is a mixture of technical and creative skill sets, and many of these can arguably be learned through education or practice.
Well, the technical side certainly can be. Anyone can become proficient in design software programs like Illustrator, Sketch, or InVision, whether it be through a college course, an online class, or a self-taught approach. Engineering and research skills fall into this category as well.