Guys, Kakashi isn't old at ALL. If you noticed, he was on team minato. Minato was the 4th before 30. He was a leader of team minato around 27. Kakashi was like 13 when he became Jonin. So think about it. He just look old because He has his father's hair color. So KAKASHI is probably 38. think about it... 13 "16 years" ago. so now add 16 to 13 and you get O_O 29. so he's around 29 to 35 since jonin on minato squad. :P
OK BUDDY WE ALL KNOW ITRACHI ISN'T THATNPOWETRFUL HE LOST HIS MANGEKYOU CUZ HJE USED IT TIOO MUCH IN A FAIR BATTLE KAKASHI WOULD WIN. i respect your opinion tho :)
But think about it, itatchi, obito, sasuke nd madara use it constantly so we're like ohh sharingan again but when kakashi uses it, we're like 'OHH S*** GONNA GET SERIOUS!' lol
and he has it covered cause it never deactivates we know this it was transplanted in sharingan form by rin when obito got crushed by a rock this cause it to be a constant sharingan and also a chakra drain always so but covering it he wont eat up any cause its closed... if we read the manga we would know this :)
everyone knows this, obito and Kakashi were on a mission against Iwa in the war and Obito saved him and gave him one of his sharingan cause the other one was ruined.
Maybe i am, it's just an opinion. NO ONE KNOWS how old kakshi is, he'll never tell o_O all we know, he could be as old as tsunade or young with white hair. But you can't find out his age by his age. in this anime, people got hair from every color under the rainbow. and BEYOND O_O