There can be such a huge variance in weight
when they are little. My friend and I have girls 2 weeks apart and age (19 months), and mine weighs 20, where her weighs 34!
People can just be rude. My friend used to get really ticked when we would be out with the girls and when people would ask their ages, and we would say "the same!", we'd always hear "oh, she's really big-I would have thought she was 2 or 3".