This post has gotten quite the response, great question to pose. It's also really interesting all the different types of responses you are getting. I'm going to preface my response with, what I'm about to say is just my opinion and my experiences and every other response on here is the same, someone else's opinion. The fact you are 21 and questioning this is excellent and you should take all the responses into consideration, but remember, it's your life and you seem very capable of making a sound decision.
One of my biggest regrets is going to college, just to go to college. And what I mean by that is I went to college out of high school because neither of my parents did, and that's what I was told to do. High school was a breeze for me easily achieving a 3.75 GPA with little effort and college was similar, or at least that's how I approached it. Do as little work as I can just so I can get done and get that piece of paper. I graduated from Eastern Oregon University with a business degree and got a good paying job right after, but not in business. I've only been out of college for 4 years and can't remember a single skill I learned. Sure I remember general business concepts, but actual business skills?? Not a single one.
The point of all this is to say, if I could do it all over again, I wouldn't go to college, just to go to college. If I could go back, I would specifically learn a business related skill such as finance, or small business, or entrepreneurship, or start up, or a number of things. I would dive deep into one of those and then practice it daily to keep that skill fresh. And that's just what I would do if I chose to go back to school. I think you can learn all that in the world with the right mindset and skip the debt from college.
I hate to rain on other people's parades but going to school for the "networking" or the "experience" or to "have fun" is just a giant waste of time. You can network, get experiences, and have fun for so much less than $50k-$100k.
I hope all my rambling ended up making some sense to you and I wish you the best of luck in your future!