Ahh yep very annoying... I have a friend who's little girl just turned 3, she weighs less than Elijah who is almost 2 1/2... he is around 14 kgs and I reckon Kaylah would be lucky to be 10 kgs! I almost throw her over my shoulder when I pick her up, I swear! Her arms are like half the size of Elijah's lol... she's just little... always has been and her mum is only around 5'2 and her dad isn't overly tall and not fat at all... so some people are just smaller.