You're not getting any younger

Maybe there is a book I forgot to read. Or maybe some chart that never graced my eyes about when a person should date, get married and have children.
Here lately I find myself dreading going to gatherings where I will see family and friends. Being twenty years old and still living with my parents is apparently unacceptable to some people. The main questions I am always asked are; "Are you in school?", "Where do you work?", "Do you want children?" "You need a man, honey.".
Why does having a boyfriend, a job, or children, make me more or less of a person. Can't I just find myself and be that for a little while?
The next person that asks me any of those questions will be hit sarcastically with "It's hard to juggle a boyfriend and school when I'm hitting the pole every night."
                  Sarcastically,
                          Not a stripper