When you are aware of who you are, it generally leads you to understand your own motivations. That generally results in your awareness of others. So how and why is that important enough to discuss?
We are told, often these days, that social intelligence is something that can be developed. The reason we might want to improve in our own level of awareness is to enable us to have a degree of compassion for ourselves, which then naturally leads to being aware and understanding of others with whom we live, work, and play.