Don’t we see this even in humans?
Some people love to get involved in every happening, interact with everyone and get scolded in that process while some prefer to live by themselves unconcerned about the others around them. The first category of people enjoy social relationships, are eager to gather all information about their neighbours, enjoy gossip, are envious of others and the like.
Just as in humans, some birds prefer to live in groups while some love solitude. It is totally dependent on their individual nature.
Among the birds that prefer to live in groups, on an average, a bird dies every month because they fight amongst themselves hurting each other in the process. We have researched in-depth about bird behaviour. Weak birds generally succumb to these fights. At times even the healthy, strong birds die in the process of fighting.
When seen from this angle, perhaps it is better to be by ourselves.
(Q&A Session 27 March 2017)