An Old Child

When I was a kid, I was involved in activities that I enjoyed the most. I sometimes felt like I was psychologically maturing into an adult because I always like adult-related activities. Adult-related does not imply undesirable behaviour such as smoking, drinking, or using drugs. It simply means to keep silent when the situation becomes unbearable, to be patient when I desperately need something, or to make calm decisions in tough situations.

A child is continually trying to establish that he or she is no longer a youngster. Someone telling him he is no longer a child is the highest form of praise a child can receive. Old and mature people, on the other hand, do not seek such praise since they are more self-aware and understand what they have become.
Old age is not a desirable state to be in. Mentally, being older implies being sluggish to understand things because of lifelong memories to scan first and then react. Children react quickly because they are mentally active. Older people take longer to react, or if they react quickly, their decisions become comparable to those of children.
A child has a fluid identity, whereas a mature person has a stable identity. Fluid identity refers to the fact that a person's knowledge of themselves or self-concept is not stable due to their constant growth and learning. A mature individual, on the other hand, has a more developed sense of identity, which means they are more stable in terms of self-identification.

Loud & Irritating

Now, what an Old-Child means? It means those who,
1. tries badly to prove that he is still not a child anymore.
2. asserts that smoking/drinking/drugs are not for children but for themselves.
3. will unnecessarily argue in order to prove himself/herself right in the hopes of winning some prize for doing so.
4. asserts that he/she is always right and you are wrong.
5. does not accept his/her own mistakes and try hard to prove other are wrong not him/her.
6. is easily offended by others and will use provoking language to degrade others.
In general, this means that old-child syndrome is an element of psychology that must be validated in order to be included as an irritating personality trait.