I don’t have any yet, but I do have two children of my own. Right now I’m not wishing for 100 grandchildren – 50 kids for each of my two would be a bit rough on them!
My grandmother survived Auschwitz, and lost her parents and six siblings there. B”H, she has 17 grandchildren and many great-grandchildren (I don’t even know the exact number, but I believe it’s close to 30 now, with hopefully more to come!) She is hopefully going to see her first great-great-grandchild in the near future as well.