-Doing data analysis with pandas on parking tickets just because it's fun and it helps people.
-Freelancing for HFT firms and doing low level performance tuning.
-Playing the drums.
-Suing Chicago's mayor.
-In the running for an amazing security engineer job.
-In the works to start algorithmic trading.
-Helping setup a giant LAN party as one of four cofounders.
A huge part of me thinks that if I'd continued college, I wouldn't have had a chance to do even a single one of these. My mental model would have just been too hyper focused towards Getting Paid to allow the mental flexibility to say "I can do/learn that!" in most scenarios. I seriously don't consider myself particularly smart/intelligent - most of what I know these days is just learned through hard work and genuine curiosity, which college hugely inhibited.
One of the other comments mentioned that degrees open the door for you. Yes they do, but the places I've seen and worked at where that matters are incidentally the worst I've worked at. Self education goes a long way as long as you teach yourself how to learn before you start learning. Employers are often very impressed by that quality, so it's still definitely possible.
That said, many folk don't like the fact that I didn't to go college. There's often a lot of animosity with mentions of student loans and knowledge depth over width. "Jealousy" comes close, but it's more seething and exclusionary than that.
College is useful if you want to learn things, but often a quicker and more holistic way to learn is to skip college altogether and teach yourself and save your future self from asinine student loans. This goes for folks who're able to get their student loans paid, too. Maybe especially, since you have the money to get an apartment to learn your desired subjects, but also about life. :)
(edit: if this sounds arrogant, please let me know. I'm trying to better myself and humility's a strong one I need to work on.)