Usefulness of empathy

I believe that empathy is necessary, useful, possible and happens all the time. Empathy is the core of many of the relationships and friendships that we develop everyday. We connect with people through the commonality that we have with each other and sometimes through the shared emotions, feelings, thoughts and opinions. Without empathy, there will be a lot more lonlieness...but then again people could empathize with each other over the facr that they both know what it feels like to be lonely. So therefore, empathy is very necessary and possible.