At over 50, what is the best age of child?

Originally Posted By MarthaMy husband was a childless widower when we married 6 years ago - me for the first time, no children. We are 53 and 59 (!!) But, I am from a large family and want desperately to parent, and so does my husband.What would be the very youngest age of a child, realistically, for us to adopt? How young can/should we go? We are looking for a child with normal to bright intelligence, but mild to moderate medical condition would be acceptable. (I would love to adopt a child as young as 5 or 6. Is this wrong for the child? We are financially secure.) We do not want to be selfish, yet we prefer a younger child (of course, a baby would be inappropriate.) We are even open to two children together (siblings).Thank you.