"Guns don’t kill people, people do." What do you think of this?

Thank you for this composition, [이름]!

This is very true that\'s why maturity doesn\'t come along with the age of a person, but on how that person acts accordingly to his or her age. See you!

~Teacher Eunice

This is a very philosophic question.
 >>> Correct!

I haven\'t heard this saying before, and I guess what this means is this is a human, not a tool, who makes a decision even if it can result in killing.
 >>> I haven\'t heard this saying before, and I guess what this means is this is a human, not a tool, who makes a decision even if it can result in killings. 

The first thing comes to my mind reflecting this saying is people I meet a work.

 >>> The first thing that comes to my mind reflecting to this saying is the people I meet a work. 
 Since I work at a membership desk, I meet and talk to a plenty of people every day.
 >>> Correct! 

Before I start this job, I didn\'t imagine how many people, who don\'t have common senses or good manners, exist in the world.
 >>> Before I started this job, I didn\'t imagine how many people who don\'t have common senses or good manners ever existed in the world.  

There are a lot of things that make us exhausted, such as hectic schedules, speed pressure, and transaction accuracy.
 >>> Correct!

Nevertheless, dealing with people is the most difficult and complicated task among all of these.
 >>> Correct! 

They want to take their anger to us or blame their fault or something we didn\'t make on us or push their unacceptable requests.
 >>> Correct!

OR: They want to put all the blame on us or be entitled to throw their unacceptable manners just because we didn\'t approve their requests.

What they say and how they behave can literally kill us, which sometimes make deep scars on our hearts.

 >>> Correct! 
 People should consider consequences they can cause.

 >>> Correct!