Anonymous wrote:We have two girls, 2 and 4yo. My brother has two boys.
Can think of more families with all girls or all boys than families with one of each.
Same. I also know a ton of families with 3 girls or 3 boys only. I recently went to a wedding and the bride was one of 7 (!) Sisters, no boys in the family. I have 2 boys and I had them both in my 40s with no fertility treatment, so the older parent or IVF theory doesn't apply. I read that the mom's father influences his daughter's probability of having more girls or boys. My dad had me and 2 boys and I have 2 boys. My SIL is the only girl with 3 brothers and she has a boy. Several of my coworkers have only girls (2 to 4 girls only families) and they all have granddaughters.
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