My son is 15 and taking Honors Geometry as a freshman in high school. That’s a junior level course. He loves math and is taking an engineering path in his course selection. His goal right now is to attend CalTech or some other highly regarded engineering school. Unlike most youngsters today, he dreams of aerospace or biomedical engineering. The other day I told him all about the Skunk Works and he found it fascinating. He thought it would be cool as hell to work there. I hope he can keep the grades together for 7 more years until he can graduate from one of those engineering schools...
IMHO, do engineering but also learn business and accounting and finance. It will be relatively very easy - best way to avoid being a genius making other people with half your ability rich in exchange for peanuts.
Tell him to read the book about the Skunk Works, and how they developed and modeled the radar evading designs. Now THAT is a great story. (The Russians actually discovered it and published their their results, but did not understand its significance.)
I later worked with an Electrical Engineer who had worked there at the time - he had nothing to say about what they did, but a lot to say about how they did it. It is a great challenge to be a part of something like that - go for it!!
The upside is that, at least for now, you have to be a citizen or at least on your way to becoming a citizen in order to work in aerospace. The aerospace companies would love to offshore lots of work or use H-1b's to cut costs, but the government is more afraid of technology theft than busting budgets right now.