But most people, especially women, cannot do that. Young females (even us older ones) are often so wrapped up in what the actual NUMBER is, that they cannot see weight as simply a "data point". They wrap their entire self-esteem, self-worth and mood around what a hunk of metal says about them. That is self-destructive.
Even people who KNOW weight means nothing can fall victim to this. I am an over-30, well-educated, smart, normal (debatable, lol) female. I was a personal trainer for many years, managed a fitness facility, supervised fitness staff, developed health and fitness programs for an entire gym, have a college degree and am a couple credits shy of receiving my masters. I KNOW better than to count on a number to tell me who I am. But I still did.
That is why I stopped weighing myself over a year ago. Even doing my BF% would change my idea of myself. If I am not competing, why do I need to know these things? Am I a better person at 15% BF than I am at 22% BF? NO. Who I am doesn't change with the numbers.
Maybe I would feel more comfortable in my skin at different BFs, but that doesn't change ME. Knowing the number did nothing for me - nothing good. if my clothes fit well, then I am doing things right and I keep it up. If they get tight, it is time to change something.
(of course, now EVERYTHING is tight and I am getting fatter every second, no matter what, lol
*sigh* )