I don't see why you would want to get a degree on the off chance you wont end up liking the job and want to go into a different field.
In my situation I learned how to code at a young age, I wanted to go to university to fill in the blanks. The first semester of my computer science Ba was a course on facebook and the internet which costed 3400GBP just for that few months. Then and there I decided I wanted nothing more from this course.