BestImmature person is behaving once reached the appropriate age to learn, but learning did not or do not like to grow mature and self-reliant, but also, and what decisions do not.
The immature person is age appropriate behaviors when learning not only to learn or do not, as adults, are still not self-sufficient and do not decide anything.
! Person's behavior at the age appropriate learning depending on the back or do not learn not as such when grown up but still independent, and can't make decisions.