The main reason Curley is able to intimidate everyone is because he can do anything without the fear of punishment. Curley is the boss’ son and has a high power over the other workers. He is able to pick a fight without the punishment of losing a job. Curley’s freedom is intimating to other people, they know that Curley is able to do anything to them, and with his aggressive personality they are afraid that he could do something very severe. Most people like Curley will bluff and say they would fight, but with Curley the other people know he will do it. This lack of restrictions is a reason to fight more; since there is no punishment he does it more. Curley, with his ability to do anything with impunity will cause great hardship for both Lennie and George.
Curley is very intimidating to everyone because he has the advantage of freedom. Not only that he can do anything he wants without a consequence, but the other person cannot do anything back to him. The other people know that even if Curley fights them they cannot fight back in fear of trouble. He can threaten other people by trying to get them fired. For example, George is afraid that Curley will pick a fight on Lennie and when Lennie fights back they will lose their job.