Emotional Independency

Is emotional independency good? If yes, to what extent?

For a child it is absolutely necessary (?) to be emotionally dependent on someone, preferably parents. But when a child grows up, does the Emotional Dependency (ED) have to reduce compulsorily or does it become so automatically? I am sure this must be different for each person and I believe a lot depends on the parents. If the parent(s) tend to be out of touch with the child in his/her initial years, then the extent of ED will be lower. In other words ED is directly proportional to the amount of time spent by the parent(s) or to that extent by any person with the child during his/her initial years - probably upto 10 years. After that, may be the peers take over.

But can the type of ED on friends be compared to that on parents? These may be two different types of EDs. ED on parents is more to satisfy physiological needs (more so till financially independent). ED on friends on the other hand, satisfies the social need of wanting to be accepted in the circles.