I know it's easy to say "I don't have a degree and look at me..." And yes, there are a ton of very successful people out there without a degree (my brother being one of them in the IT field). But I think if you are driven and motivated, which are both required to be successful regardless of education, why wouldn't you want to gain every possible edge you can?
I know college is expensive, but you don't have to pay $50k/yr. You can go to a public university and get out for around half that. You also don't have to borrow every last dime you spend while in college. I had several friends that would work 20-30 hours a week to help pay for everything. It took them 6 years to graduate but when they did, they only had about $10k in loans.
I graduated with a business degree and with some hefty loans (hefty to me at least). However, I would not change a thing. I got the job I have today because of connections I made while in college. I kept the job because I bust my butt and have a good work ethic. People say you can't learn work ethic and "hussle" in college, but if you go to a decent school you cannot graduate without these qualities.
I'm not saying use college as a way to "find yourself", but I do believe that you don't know as much as you'd like to think when you're 18 years old. What better way to develop into a young adult then around like-minded people that are pursuing higher education? There's something to be said for "birds of a feather flock together". If you want to be rich, hang out with wealthy people... learn from them. If you want to be educated, hang out with intelligent people. If you strive to be a RE investor, spend hours on Biggerpockets :)... you get the idea.
Point is, is that in general (these next statements are all generalizations) young adults that are in college are looking to better their lives. These are the people that will be called boss, the people that will operate businesses, the people that will have a higher quality of life. Would you rather surround yourself with these people, or skip college and try to work your way up surrounded by people that also skipped college because maybe they aren't driven like you are? Either way, you're going to have to work hard, so why not work hard WITH a degree?
I think the answer is obvious whether or not college is worth it. I'm not saying you cannot make a great living and have a wonderful life without a degree, but why limit yourself? I have never heard anyone with a degree tell me "I really wish I hadn't gone to college". You have your entire life to work... what's 4 years when you're still young in the big picture? Nothing! And, if you are financially smart while in school (work, don't party all the time, etc.) The ROI will be through the roof!!