Situation could be different then. Don't forget that are also bad people in our society. They want to spread negativity and one violence in society. Without government, you can't expect an discipline from people. Cause people of a rules and regulation because of law, punishment. So situation will be more difficult without government. Even who will distribute everything properly? They were will be many opinions. That'll be problem too
Throughout the ages people have stayed together to stay free from disorder or anarchy. Again the breathing system has been introduced to maintain discipline within the same tribe. If not people will indulge in anarchy because human character is prone to crime when given a chance, but I will not include everyone. Moreover to perform any big work one must give instructions from the front. For that government or governance is essential.