Charlie has always been the "normal" one of the crew by default compared to Dennis being a muderous arrogant psychopath, Mac being high key over religious and gay, Frank's grimeyness, and Dee being a bird. Plus as we learned about Charlie's childhood abuse and neglict the dumbing him down kinda makes sense to reference his poor upbringingCharlie was a normal-ish guy back in Season 1 though. They dumbed him down a shyt load. First episode he won at dominos, whereas he couldn't spell the word now.
yet he's still my favorite of the gang
Breh, I was GONE when Charlie started to do that little jig 
They're gonna find this bytch dead in an alley dressed as a cat 



