In Europe, generally speaking ,after the Bologna treaty, Univ. degrees became self-learning oriented and you're more taught to go search for knowledge yourself, so in a certain way it can become like home learning with tutoring in certain courses. I think it is useful for getting some essential foundations on certain areas like fine arts, sciences, architecture, etc depending on what CG area you really want to pursue. Also don't forget that a broad general knowledge is also very useful in whatever area you are. At the same time you can refine your options and start to find the area you really want and specialize in it by taking some courses and learn as much as you can about it. That's one way.
The other way seems to be to jumping directly to a CG school, but i'd only suggest to do that after knowing for sure what path you want, since its a very directed and specialized learning (not to mention costly
) and i think although they always give some introductory teaching to the basics of composition, color theory etc, it wont ever be the same as having experienced it as a hobby or in college doing some photography work assignments or shooting your own movies, i.e.
So in sum, college is indeed useful to build your path on it, but if you have your mind set there are lots of CG masters who knew exactly what they wanted and succeeded without it, learning only their craft by themselves or at courses. Good luck