A father holds his child as they take a walk at an exhibition in Tokyo January 6, 2007. More and more Japanese men are aiming to join the ranks of the "Cool Dads", in sharp contrast to their own fathers who were known for their "work-till-you-drop" and "leave the kids to the wife" lifestyles. Picture taken January 6, 2007. To match feature JAPAN-COOLDADS/ REUTERS/Kiyoshi Ota (JAPAN)