What you say is absolutely true. But I will also say that most people have warped ideas of proper weight. Using myself as an example, I was 195 and felt like I was overweight but not obese. If only I could get down to 165 again I'd be skinny. Charts said my "normal" range was 120-140 and I felt like that was ridiculous. When I reached 160 I was surprised at how much fat was still on my body. Again at 145. When I reached 130 I could finally see that those numbers made sense. I was fit, not a lifter but not sedentary either. The range was perfect.