You may just want to do android and web dev now, but nobody knows what will be important 10 years from now. The skills you pick up in college, as well as the credentials, may prove to be useful.
I am in-state and I have some money in savings so I could probably manage it well.
>nobody knows what will be important 10 years from now
That's one of my fears about going to college. Perhaps it's irrational but I have this feeling that I'll miss out on prime opportunities which might not be available after I graduate.
>The skills you pick up in college, as well as the credentials, may prove to be useful.
I definitely agree with you on that. If I ever want to get into more rigorous software development like machine learning, searching, etc. college would be very valuable.
College might be good also in the respect that you might have at your disposal lots of test equipment, a test audience.
You can still add to your GitHUB from college too. :-)
If you are more interested in starting/continuing to run your own projects than working on someone else's, then I would- without a doubt- go to school.