No. Never once thought about that
Mine was growing old and walking along the beach at sunset with my
spouse and dog 
Anyway I see us as a complete family unit
You don't need kids to be complete
I told MPB that having a kid is not like having a pet
If you find that you cannot keep the dog anymore, you can still
find it a good home
You can't do so with a kid lor
Plus, I told him a well-trained dog won't piss and shit all over
the house
But a naughty kid can turn the whole house into a warzone