A lot of kids at age 17 or 18 are often not clear, about what career would fit them best. Add to that is a changing world, that would make things even more confusing. The job opportunities that exist now were absent ten years ago and so it is quite likely that what you train for now might not be enough sooner or later.
At one point degrees were the sole motivating factor for higher education. There was prestige in the number of degrees you ‘gathered’ or what degree, for that matter, you attained. Although degrees continue to be relevant, somehow they no longer are a defining factor for some jobs at the entry level.