Why is it so hard?

Why is it that children find it to be such a tremendous task to clean their rooms?

I know that when I was a child it was always a point of contention between my mother and I. Now I am dealing with the same thing with Dean. He cant seem to comprehend the concept of putting things away when he is done using them therefore his room tends to end up looking like a tornado has hit it. When he does finally get it cleaned he is happy that its done and does fairly well keeping it that way for a day or so but very soon it looks like it did before it was cleaned and you are lucky to walk across the floor without stepping on something.

i know this is something that every mother deals with but as an adult I just don't understand why he would rather not pick up after himself and get in trouble than to simply put thinks away.

Ok, enough ranting for tonight. Tomorrow we start the battle of cleaning his room all over again as he fell asleep tonight, just too tired to clean it. (his own words...lol)