Why do adults act like children when it comes to arguments? They'll argue over the most trivial of things, like two toddlers who don't get what they want.

Adults were children once too. Part of being an adult is overcoming that childish side of you when in an argument, the selfishness of only thinking about one side of the argument. To truly be an adult you must do your best to understand both sides of an argument instead of being hard headed and saying what you say goes. Adults aren't perfect either trying to become that level of maturity is hard, after all we are human, and humans make mistakes.

Because it's so much easier than just agreeing and saying sorry. The worlds a crazy kinda place!!!!!!

Sometimes people can only react to situations/ rather fights in your case the only way they know how to. Maybe giving them some knowledge on how to deal with the situations will be a good thing to help them to react better.

Since adults are supposed to have authority, be wise and knowledgeable from past experiences, and are looked as being someone who has total control of their life and situation they tend to see things in one way. By not budging and standing firm on any and all topics with the "correct" answer that they panic and don't want to be seen as a lesser or failed adult.

I feel that there is a childish character in anyone that never dies. That lives with him or her till the end of his life. We may have been civilized to suppress our childish behaviour but the child is inside always and can appear unconsciously in the form of an argument always

As an adult, i can say to you i don't feel that much different as i was a child. And that's basically it: the difference between a child and an adult is that an adult is a child without anyone supervising their emotions. Believe it: we don't ever grow; just get different interests and responsibilities.

Adults do act like children not because they want to behave that way many times they are trying to voice an opinion or an emotion that is true and people are not willing to listen they are not giving the time of day because perhaps the other side either got burned out or does not want to recognize what is like to take part in a relationship especially when it's jeopardizing a relationship no person wants to lose out on a beautiful relationship but unfortunately sometimes behaviors like this to happen even to those who are the best behave. And even under trivial ones well that's a whole different issue it may be due to attention as children or should I say lack of attention as children it could be that Mom and Dad were always working and that child was always alone and has tried and tried and tried to make things work on his own. But no matter what if the person recognizes that he does need all side help even if it is a woman they should seek counseling to overcome moments like these in the future

Usually if the argument seems trivial there is a deeper underlying issue, especially if nothing seems to resolve it. Emotional intelligence is lacking on one or both sides of the argument. They're trying to express themselves, and they either don't know how to properly, or they aren't sure of what their underlying issue is; either way is a form of miscommunication. There are 2 reasons it seems childlike: 1 - it is, children usually haven't developed to the point where they can discuss disagreeable matters in a respectful and indifferent way. 2- The emotional intelligence and perception of the spectator.