why do i need pockets that do not work?

no, seriously. i've always noticed them, but i've never tried to use them before....until today....dum dum dum!
there's 2 pockets, actual pockets, on the front of my pants. they are so actually pocket-like that i have to straighten them from the inside every time i put them on.
so then today, i'm thinking, "my hands are kinda busy-full and i should put my id access card in either pocket- it should fit perfectly."
but alas! it seems, for some odd reason, that my pants were unable to accomodate this request...as the pockets are sewn closed!
what exactly is the logic in this? why have an inside filled with air & sewn shut!? i will have to now lengthen my list of "things i do not & probably will not ever, never understand".
today is a interesting day. interesting indeed.