re: What type of career would you recommend to an 18 year old in today's age?

Most of the classes are the same first two years (some differences for cohort based majors like education/medical stuff, some difference for business, some for BA/BS) with lots of overlap. Go figure out what you think you want (you’ll probably change your mind) and just keep making progress. It’s a lot harder and takes a lot longer to finish a degree later in life. If you decide you want to be a plumber or whatever, you can still do that later.
Don’t assume whatever major was a good idea 10 years or even 5 years ago is a good idea now. Minimize student loan debt. After a bit get a part time job, try to fund living expenses with it. Utilize all the services the university offers. Tutoring, career planning, clubs, inter mural sports, etc. you pay dearly for them. Get your money’s worth.