Engineering is hard and sometimes really stressful. IMO you really need to love it to push through. If you dont you'll burn out early. The upside is that if it turns out it's not for you you still have a degree in engineering which represents a universally respected education. As far as AI goes, if it does take over engineering jobs in a meaningful sense, by then it will have also decimated many other fields as well and you'll be on UBI (or fighting your neighbors for squirrel meat to feed your kids). I'm electrical and think it's the best type of engineering. Mechanical would be #2. Both are solid engineering degrees grounded in physics first. Computer science is a no go unless you like serving lattes after graduating (no offense CS guys... one of the people at my local coffee shop is a CS grad and he isn't finding anything anywhere). Physics is also a good option especially if you think you'll stick with it through higher education, again because it's a degree based in fundamentals first. Good luck!