I'd really like to study economics but i guess you are right. Using mathematical and statistical models to produce information is for my understanding what economists mostly do, and thats something that AI is already very capable of.

Some people have made an argument (including Mark Cuban and Yuval Noah Harari) that although philosophy has been one of the worst degrees thus far, it might be valuable in the future since AI raises a lot of questions about ethics, and people need answers about how to live meaningful life without work. here's some random article someone wrote. https://medium.com/i-human/forget-about-coding-the-job-of-the-future-is-philosophy-33acadcee05a

I actually have a long background in team sports so sport sciences and coaching could very well be quite a good AI-proof option for the future