Why can't आप go into the imperial gaurd places even though आप are know as the Champion and still can't be in guard bartracks and stuff like that?

do आप mean champion of the arena?

Because thats how it is no matter what आप do they wont allow it but on some occasions the guards don't ask me to leave at all!!!

If आप mean the Imperial Palace and the other areas like Ocato's room आप have to do the Theives Guild quest but if आप mean the reagular Barracks then idk but आप can illigaly ^_^

I think because the politics of the monarchy,the kings या Septims are at the चोटी, शीर्ष so they have the
ability to use the whole tower floor 1-5,Ocato 1-3,you 1-2.

because आप are just a fighter not a guard

I dont know probably its A glitch या something xD