I'm sorry Kay, I worry about that too and my pups are only 1 and 2 years of age. I try not to worry about it but like you said, it's hard not to. I wish they aged like people do. Simba has a great mom who will take great care of him, he'll have a wonderful and very long happy life with you, he wants you to be happy, I know he loves you very much!

-hugs-