Study whatever lets you figure out if that field is likely to be fully automated quickly, or not. Many roles will be augmented by automation long before they are replaced by it. You want to be able to recognize and use the help, rather than run from it. Use those skills to make money and invest, because capital is likely to do just fine when robots and software come for labor.

Or if you just want to make sure you have "a job" for as long as possible, yeah, go for trades like the other commenter suggested. You'll make good money, and it will take a while for a robot to replace you, longer than an office worker.