How old is too old to adopt a newborn

As far as the age thing goes, when my DH was born his own Dad was 53. So here were are now with an 11 yr old bio and we would take a baby in a heart beat. We are 45 and 50. Even when DD was born, I was way older than other Moms or the others had several children with the kid the same age as my DD being their last baby. If we got a baby this year, then DH would be almost 70 when they were in college. So what. It's all about what you want and think you can handle, not based on the age of other people. it isn't their life, it's yours. I think we're older and wiser.