My take on this is that if you can afford to go to college/university and you feel like it would benefit your life because of something you wish to pursue as a career, then good for you. Go for it! I hope you get everything you want out of it and wish you happiness in the career path of your choosing. However, if you really don't feel like it's for you, if you don't like school, if you don't do well in school, and you feel like it'll drag you down, then don't go. Find a job doing something you love doing or work up to it somehow. As long as you're happy doing what you do, I say, go for it. Live your dream.
Now, the reason I say this is because I know people who didn't go to college or didn't finish college and they're perfectly happy doing what they do. Some have families, others don't. Point is, they don't regret not having that diploma because they're living how they love.
On the other hand, I also know people who have graduated with a degree in (insert fancy name here) and are completely unhappy. Some knew that college wasn't for them but pursued it anyways and now are in loads of debt; others thought they knew what they wanted but are now either out of work, couldn't find a job in their desired profession, or have become uninterested in the subject in which they received their diploma.
So, if you feel like your time could be better spent at a job than at school, that's ok. Don't let anybody tell you that you're wasting your life away if this is what you're doing or want to do.