Who likes playing, grownups or kids?

While talking to a colleague about a lecture on Politics at Work that am preparing, he goes saying based on someone's saying that:

“Matures think that children go for playing in the play yard, while in fact they go to work (workout)! Children on the other hand think that matures work when they go to work while in fact work for us is a game, a hard game that needs to be ‘played’ well” 

Well, pretty much interesting and pretty much true is what I see in his words.

P.S Will come back to add more to this note.