When you see a charger plugged into a socket, and the switch is turned on, but it charges nothing.

Who left the plug on? Who left the plug on after use? Who charged his phone, stopped, and left the plug open? Who is charging something that doesn't exist? Why did someone charge the air using electricity? Can whoever did this tell me why did you make the fresh air around us dirtier by giving them electricity? Thanks for charging the air around. Now when we breathe air in, we will obtain more energy.