Is sports science worth it for an international student?

Hi, i am an international student , i plan to do sports science and my question is, is it worth it. I am very passionate about sports and the science behind it, but the last thing i want is to spend thousands of pounds for 3-4 years and not get a job or earn very little. Back home, you cannot do anything with sports science, except a p.e teacher, for which you earn very little. So how easy or hard is it to get a job with sports science in the u.k, especially for a international student. Thank you, your answers will be appreciated.