Baby’s birthweights still seem to be mainly in pounds, but it’s very difficult to know what it means given that nothing else is typically measured in pounds. Someone will say about their baby “they were 8 pounds” and you’ll say, “oh, very good” and neither of you will think of pounds again.
Not most, technically - wiki says 0-14 make 44% of population. But this article breaks down the 70% further by saying 44% killed were 14 or under, so it’s pretty much bang on for indicating that they’re killing Palestinians at random.