In a street fight scenario, it is common to think that you are going to be confronted by someone bigger and stronger, where their intent is to do you great bodily harm and/or knock you out. In this situation, rather than risk being knocked out yourself by standing and trading blows, it is more advisable to neutralize the opponent in the clinch, smother their powerful strikes, and eventually take them to the ground where you can allow them to exhaust their strength advantage, from here the smaller person, has the option of neutralizing the opponent with a choke or joint lock, or even just escape, wait for help, get compliance and withdraw, etc
Out of all the more common martial arts, Gracie Jiu-Jitsu, embodies these strategies and technique. They don’t espouse striking against an opponent, unlike other grappling arts, their context and focus is the assumption that your opponent is bigger and stronger and trying to do you harm, rather than this is a grappling skilled opponent in a tournament setting.