We have a new kitten (about 6 months old) that doesn't jump up on things. He'll climb up (IE. bed, couch) instead of jumping up. I guess we should be thankful but my wife is concerned. He seems to walk and run, go up and down stairs, jump down from things, without any problem. Our vet says his legs appear to be ok and he's probably just afraid to jump. We've had other kittens and I'm pretty sure they were jumping at that age. Has anyone experienced or heard of this? Do you think there is something wrong?