What do you want to do when you graduate?

Getting asked this question every time I have a conversation with a family member really sucks. I always just stand there and think about how to respond to them. I'm scared to tell them that I don't know what i want to do. I don't know if i want to go into college or if I want to start finding a well paying job. I was offered to be a manager for a construction company with a really good pay. I was told that while they were training me I would most likely be making $14/hr and then when i started working as a manager i would start to get paid $30/hr. Getting a job offer with that type of pay has made it that much more difficult to decide if I want to go to school. I know I'm smart enough to get through college, but I also know that it is going to cost money especially after getting denied FAFSA. So should I go to school and spend money that i don't have and struggle for a while? Should I just take the job offer? Should I take the job and take night classes?