I think what other answers miss is that OP probably is interested in studying physics AND working in physics, not studying physics and working in finance or programming.
To the OP: It depends a lot on which area of physics you are interested in (particle physics, condensed matter physics, biophysics, astrophysics,...) and what degree you have (BSc, MSc, PhD). In some areas of physics, it is possible to be a researcher in industry, if you're interested in being one, and you'll probably need a PhD for this. I'm not saying you should know whether or not you want to get a PhD when you haven't even started uni, just saying there are jobs in PHYSICS outside academia. There might be even some which don't require a PhD.
Plus, there are some interdisciplinary fields which you might become interested in later on. For example, I was recently looking at some Biophysics PhD programs, and they take students from physics, biology, neuroscience, etc. So you might even be able to change your route largely, and still work as a physicist.