Perhaps a minor point, on the subject of going to law school but not wanting to practice law.
I can imagine a situation where someone might want to go to law school, but not want to be a practicing lawyer. Maybe they want a career writing or commenting on government, or something like that. Or maybe they want a career in government. I can imagine many internships, clerkships, and the like being available to law students (tho I’m not sure if advanced PolSci studies would be less effective).
But the bottomline is that the thing law school qualifies you for the best is - surprise! - to be a lawyer. (Of course, you can search previous threads where I contend law schools do a pretty piss-poor job of even that!)
Unless you believe in re-incarnation, neither one’s money nor time are infinite. By the time you are in your young 20s, I would seriously counsel against taking on a multi-year and relatively expensive committment, unless I had good reasons to believe that committment would take me further along the road I wished to travel.
Hell, if you just want to be a well-rounded, educated person, law school can help considerably. So much of every aspect of your life and society is related to if not governed by legal concepts. Contracts, property ownership, liability, criminal justice. That’s broadly relevant shit.
But most young folks I know do not have the luxury of simply piling up degrees and amassing indefinite amounts of learning simply for learning’s sake.
Yet more unsolicited advice:
You don’t need to make the decision right away. You could possibly take some time off after undergrad. Travel, or work at various jobs to see what if anything you want to study further.
Part of the tough thing while you are young is deciding what lifestyle you wish. Do you want a job you love, even if it pays little? Or do you require a more comfortable lifestyle, which will require that you either develop some marketable skills, experience, and a certain resume?
You can go back to school at a later date. BUT - it gets increasingly difficult to go back to school if you have either entered into committments such as marraige or parenthood, or if you have gotten accustomed to a certain income. If you think there is a possibility that you want to return to school, you may be best served to adopt a relevantly modest lifestyle. It is easy to say you can live cheaply while a student. But once you get out of school, start making some money, and start enjoying some nice things, I can imagine it being a little hard to give that up and returning to a life of ramen noodles.