Why didn't Cobb dap his homies at the end of Inception?

[Kartel13]

 

[Mook]

Why your sister dapping cholo dikk with her chin every night breh?

 

[Kartel13]

Why your sister dapping cholo dikk with her chin every night breh?

Did you smash on that aunt of yours yet?

 

[Bruce Wayne]

Wasn't Cobb more concerned at the moment with his Children that he hadn't seen in so long and also if this World was a Reality or Limbo?