I left my parents home when I was about nineteen years old. By then I felt like I wanted to be my own "big man". There are some things that I wanted to do which was not possible for me. I will here seek to give what I call a proper response to you question of how living with parents in adulthood makes a person extremely immature.
Maturity is the ability to take up certain kinds of responsibility. It is the willingness to face your fears and overcome them. It is the willingness to take chances and be prepared to face the consequences of your actions-be they good or bad.
Living with parents is a sign that one is not "grown up" or be willing to do what is needed to be done.
when living with parents, it is parents who make all the important decisions. My mother use to tell me that as long A as I am in her house I am still a child. Can I have a girl friend? No. Can I stay out at friends' house at night No? Well what can I do? Rent your own house, get your own keys and then make your own decisions.
But that is not fair. No one is talking about fairness. We are talking about growing up and be coming your own man. Get a job, earn your keep and spend your own money.
They made my life challenging until the day I walked out. Then I felt real good.
Living in parents house means a denial of whom you were intended to be. It just does not make it.