What is termux and who should use it?

Hello to all people who are reading this post!
I am not going to make a long text here but I hope you like it.

As all of us know that , Termux is a terminal based application for android which works like terminal emulator and you can use the terminal to run mostly all programs my android don't support or do some thing new and interesting.
The Termux works on android very well and just some times and for some points it needs root access but why this kinds of apps are doing well? Cause as I know the base of android is linux and the termux is making your device a perfect small linux device and also commands are nearly as same as linux.
But also we need to know termux is not a complete linux , then we can install the terminal version of real linuxes on it like arch linux , kali linux , ubuntu and ...

Ok now which people should use termux?
In my own idea , the people who just now how linux works , who don't really care about GUI and love the terminal ! And also need to do some things while they are far away from their computer.

And also I have to say this , if you really like to use termux , you will need to have some sace to be able to install programs on your termux.

Thanks foe reading my post.