It is an analogy..
Rider: Lean to the side
Training wheels: Hey! Whoah there. If you do that you will fall.
Rider: I know, do it anyway! (sudo...)
Training wheels: Your choice, I can only prevent so much.
Rider falls over...
If a user has sudoer privileges, sudo serves as nothing more than training wheels.
User: apt install APP
System: Access denied. sudo privileges required
User: sudo apt install APP
Sytem: Okie doke
And the age old `sudo make me a sandwhich` joke continues...