First ,In adolescent stages ,children have very less exposure to the real world situations and challenges and parents will look after the issues
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When these children turn as young adults long for freedom just for the sake being independent which in turn lands them in trouble as they are completely unaware of dealing these situations .
When these children turn out young adults they would long for complete freedom and love the idea of independence. However, they are unaware of the negatives of becoming independent without maturity and experience.Instead when they stay along with their parents for a considerable amount of time, they get a chance to watch how they deal with the challenges or issues they face and learn from their parents success stories or the from their failures which there by helps the adults to gain confidence in leading their life when moved out at later stages.
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Instead if they continue to live with their parents until they become more matured to handle situations on their own , they would be able to face challenges more effectively and make wise decisions.