I would say don't rush into a degree that you don't want, but seriously, don't take a gap year if you're just planning on travelling or working in Asda, you really need to make it count - otherwise it's just a waste of time.
I did an apprenticeship after my a-levels, and then worked. So in total I took 2 years out. I got amazing work experience and skills, and have just finished my first year in uni.