I think a lot of people were saying the same thing around Y2K.
We'll see. Bump this thread in 20 years and see if we're still here
People were saying similar things all the way back in the 60's (some of the people my parents went to school with figured they could take out loans and not pay them back, for similar reasons). People seriously say the same thing every few years.
What it boils down to is someone taking out a loan, which is a contractual agreement, and then thinking they can be sneaky and go back on it because they were "too young" or "too stupid" or the lender was "dishonest" or whatever they think is most convincing. I find it unconvincing, and am glad the OP doesn't seem to be entertaining that idea. If you want to be dishonest, fine, but don't whine when you're reaping the rewards. Loans are a bad idea, but that ship has sailed for the OP. The question was: now or later?
In light of the fact you appear to have most things paid for by your parents, I'd start paying off the loans. Once you leave the nest, you will find yourself confronted with all manner of charming bills to pay and responsibilities to meet, and it's unlikely you will have a staggeringly good job right out of law school. This is barely making a dent in your loan, but it will be that much more of a dent you don't have to pay later. Right now, there's not much more I could suggest you invest that money in for a guaranteed return that rivals the amount you'd save on interest.
If your parents are well off (and that's an "if"; I am not assuming they are merely because they're paying a lot of your way) you might propose a "matching" arrangement whereby they match whatever you put towards your student loan, or maybe contribute $1 for every $2 you put towards paying it off.
I would also venture to find a better job than Dunkin Donuts. It's summer. You have more time on your hands. A good supplemental parttime job is the woefully low-paying but nicely relaxing rental car driver job. You drive cars from one location to another, or you might drive a car to someone's work, pick them up, and drive them back to the rental car location. You spend most of your time alone with the radio, driving around familiar roads. There are a lot of little jobs like that with which you could add to your income.
I still stand by my advice, though, that a small portion of your money should go towards keeping you sane. You're going to want to go DO something from time to time. Budget for it, or you'll burn out quickly.