To begin with the former opinion. The primary reason behind this phenomenon is the privacy. Everybody, nowadays wants space in their lives. By living far from their families. People can enjoy their lives.They can take their own decisions without any interference.the other perk of living on their own developes problem solving ability in people.That is to say, when people live in joint families, they are not much exposed to outside environment or they do not have to deal with the problems.Living alone make them strong and teach them to deal with the situation.Another benefit of staying aloneis people get mature at early age and become responsible in their lives which help them to grow.
On the other hand advocates of the later view believes that there are many demerits of living alone. Firstly, people becomes homesick after living outside for a longer period.In this way they feel emotionalally detached from their families,which ultimately became the cause of anxiety and stress in their lives. The another negative point is people sometimes took wrong decisions in their personal and work life.They do not communicate with anyone about the situations of their lives because of the zero guidance from families
To recapitulate,although living alone make people responsible of mature in life, but I tend to believe that in orderto grow in life,touch with the families is crucial.