I wasn't ready for college after high school either, and I saw a lot of my friends get kicked out or fail because of the freedoms that college affords. I decided to take the summer after high school and the next several months to travel (which was amazing and afforded me a lot of the same freedoms as my friends without having to worry about a formal structure or blowing a scholarship).
Then when I came back from overseas, I learned a trade; went full time for 6 months and had skills that allowed me to work full time, make and save a bunch of money, then when I was 24, I went back to college. I should graduate this January or May (fingers crossed for January) with my Masters Degree.
Since I was older when I went to college, I was more serious, so I have scholarships that pay my tuition. I will have very little in student loans when I graduate, thankfully. You do not have to pay back grants from the gov't or other institutions, but loans you do, obviously, and it is easy to look at them as free money but that is a good way to wind up in seriously bad debt. Some people I know have $100, 000 or more in student loans.
There are plenty of ways to get an education that aren't so intense or stressful as higher education at the young age of 18. It's hard, hard work and requires a dedication that I think a lot of kids don't have. Don't feel pressure to do what everyone else is doing, if you don't think you are ready, or don't want to go to college right now, you are probably right.
Good luck.