This isn't to say that all teenagers only use 800 different words a day. I'm sure some do, but there have to be some that only do so to communicate effectively

This isn't to say that all teenagers only use 800 different words a day. I'm sure some do, but there have to be some that only do so to communicate effectively with their peers. I know that when I was in high school, using large words really didn't get many anywhere with my classmates.