Our native language let's us have a special bond with our culture and roots
We will have a special language with our language
Easier to learn than English because you can grow up learning it making it your first language and of your environment
From the web/research:
many researchers have proven that the linguistic ability of our native language has a close relation to the development of cognitive abilities and learning abilities........etc.
In "Civil Peace" the phrase "happy survival" when it is used as a greeting means that the main goal of everyone one encounters is just to survive, so they're being comedic.