awesome! When I was 15 years old I wasn't really thinking about my future so props to you for thinking that far!

Anyway, as other have said, I feel like electrical engineers should be pretty in high demand. There's also "sub branch" that involve other discipline: electronics, computer engineering, robotics, mechatronics, biomedical engineering, avionics, etc, which I think won't go anywhere anytime soon, at least within our lifetime.

If you're really interested in AI, I think robotics will be a really cool focus of study.