All people when they grow up would need work to feed itself. Hence the working life is therefore comparable to the "first step" that everyone must face, and is the signal that indicates that we are.
When people grow up, they will have to work for themselves. Thus, working life is like a "first step" that everyone must face. And a sign that indicates that we are already adults.
Everyone has got to work when I grow up feed yourself. Therefore the working life is like a "first step" that everyone must face. And a signal indicating that we as an adult.