Serious question - how do you even learn all of the skills to do something like this? Where would you start?
A good engineering course would cover most (if not all) of the skills necessary to do this. This is notable because the person is young and wielding a broad slice of the discipline with maturity.
Now with LLMs? Super easy. Just ask for step by step instructions to build a standard drone. You will learn about micro controllers, physics, pcbs, 3d printing etc.
If you have some time available definitely worth it.
I wanted to learn more about photography, I started asking an LLM and it helped me immensively. Definitely not the same realm but if you wanna pick up new skills, LLMs have tons of beginner friendly ways to explain things!