That's quite a few, certainly more than the norm in this day and age. And 21 grandchildren. When I observed that he must have liked children, everyone agreed wholeheartedly. That's not surprising. Children have a positive affect on lots of people.
Children are fun to be around, most of the time anyway.
Children have, it seems, limitless energy and enthusiasm. They are always amazed at the news things they've learned, their joy of life seems a treasure at times. Children see things that adults don't. They haven't been conditioned to recognize and interpret reality the way we adults have. A while back someone gave me a bit of advice and told me not to ask children questions during the children's time at church, lest they give you answers you weren't expecting.