The context of the following conversation is Sydney decided to stop being so responsible so she began to throw caution to the wind.:
Sydney says My family tells me when I was growing up that I am the responsible one out of all of my siblings..
The friend responds How many siblings do you have?.
Sydney responds I came from a decent size family.  There's six of us plus our parents.  That's a family of eight..
The friend responds That's pretty big.  I only have one sister..
Sydney responds I am tired of being so responsible, so I am not going to college after high school.  I just want to travel the world for a year with the money I've saved for college..
The friend responds You want to see the world.  Nothing wrong with that..