Dear Annie: My husband and I grew up in large extended families, and we are delighted that our son’s daughter gets to do that too, on her mother’s side. That we don’t see her much on the holidays isn’t important. What’s important is that she is surrounded by a loving family of many aunts, uncles, cousins and second cousins. When “Soon-To-Be-Grandma’s” grandchild is born, there will be lots of…