Much of what we do on computers is two-dimensional: text-based apps, photographic images and illustrations, many games. But one of the real powers of computers is the ability to design three-dimensional objects. It's useful not just for games or movie special effects, but designing cars, airplanes, buildings, vacuum cleaners and furniture.
We use a program called SketchUp for 3D design. It can create very sophisticated models, but is simple enough that anyone can have fun creating things after just a few minutes.
Anyone who ends up working in a field designing physical objects will end up using 3D design software similar to SketchUp.