Well I agree with AlameluKrishnan to some extent.Certainly, i don't agree that staying close to relatives satisfies the aim of privacy.Because relatives(interested in gossiping and with nothing to do at hand) at a closer distance tend to be bothersome,than giving a feeling of belongingness they actually sometimes be the reason to get hurt themselves and we blame ourself.In a fast paced life one needs privacy ( this is a basic requirement now!) and in trying to cope with the fast pace you tend to hurt people(irrespective of how who they are and how they behave with you). if you are not aware of what you are doing and where you are going.So this ultimately damages the aim of opting for a nuclear family.
But again as AlameluKrishnan has already said that 'if the relatives/close family cannot manage things on their own, should definitely be living with someone so that their meets are taken care of.'
I will try to define the aim for opting nuclear family, 'keeping oneself away from the emotional hurts and entanglements,thus keeping each member in the family happy'.
