Look at the way he holds this Kid... making him a seat with his hands... I used to carry my Daughter like that, with one hand on/under her little bum, from the time she became more interested in discovering the world around her than in "snuggling" beside ("against"?) Mommy... but then I ended up with a bad tendinitis quite promptly... which I guess is not likely to happen to him ;-))) even if he carried that one all day long!
It's very easy nowadays not to have Kids if you don't want to - even for a man <G>... I doubt he would have had 6 Kids if he did not love children. I do think he loves them...
He looks quite happy on that pic too...