Even if we forget about biblical people like Sarah, who had a child when she was 90, look at David Letterman who had his son at age 52. He always jokes if he would have waited 10 years, he and his son would have something in common. They both would have been in diapers.
Never too old. If you can't have one by natural child birth, there is always adoption and foster care. As a single person, I cared for a "foster child" for 4 years until he was 18. He stayed with me, until he was 22 while he went to school. He went from D's & F's in junior high to finishing high school with a 3.94 G.P.A. From 18-22, I didn't see a lot of him, between school his ROTC, and his job, he was hopping. We had good times even when he was at college. A typical college student, home on breaks, calls to say he needs money
. I would go out to the university and we would have a dinner or something, to sit and talk. By time he was nearing the end of his schooling, he was tragically killed in an auto accident. It was the other person's fault, but no charges were ever filed that I know of.
At his funeral, his friends from high school and the University, said Micah talked about me all the time, and they also told me how much Micah loved me and valued what I had done for him during the last 8 years. We had a special relationship, and I will never forget him. I look forward to the day I can meet him again in heaven. Not bad for someone, who has never had children, eh?