Pros
1. The idea of being done with school is amazing.
2. No more paying for tuition. If you don't graduate early, will you have to take out a loan? If you have loans already, then less debt for you.
3. You can start building your resume at an early age. This way, by the time you are older and further in your career, you are already a top dog in your company with a lot of experience under your belt.
4. You can start pursuing a Master's degree earlier.
5. Employers will be impressed with an early college graduate. It makes you look intelligent, diligent and hard-working, and responsible.
6. The sooner you graduate, the sooner you can start making real money.
Cons
1. Once school is finished, you enter the very real adult world.
2. If you don't like your job in the real world, you can't just quit on a whim. It is best to stay with companies at least a year before quitting.
3. Less time spent with friends who are still in college. FOMO is so real.
4. Less time being a young, care-free college student who just wants to be lazy (ahem.... do her/his own thing).
5. You have less time to figure out what kind of job or career you want.
6. You have less time to add things to your resume like a minor, another major, or any extracurricular activities.