Is it one person , or both people who were involved in the fight who are penalized?
Or is it usually only the aggressor who finds themselves in trouble?
From what I understand legally , to push or shove someone is a "preventative measure" , though to punch someone is "punitive." Correct?
I also understand that people can defend themselves within reason , without using excessive force . You may use force to the same or lesser degree of the attacker.
For example: if someone puts there finger on your chest and pushes you back a little ,
it would be quite extreme to haul off and bruise or bloody their face , or hit them with an object.