system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why do schools teach a really proper version of foriegn languages thats too proper for a real native speaker to understand you?

The native speakers of the language dont understand a lot of it. 
Why would you teach it this way if we cant really use it that effectively? Wouldnt it be better to teach real life conversational versions of the foreign language to be able to use it?
gpt
Fundamental of language are taught which are how proper form is based. 
Everyday speech is usually full of slang and colloquialisms which you will pick up quiet fast once you know the basics, even before you hit that damn wall.