Why does everything have to be measured?

Why, as humans, do we have a need to measure everything.

At the end of the day, does it really matter?

I consider myself to be healthy in that I make sure my body gets what it needs to survive. Now, I admit I haven't been eating 'properly' for quite a while now - [depression]. I haven't a clue what I weigh, I leave that to hospitals and doctor's. I don't have a need to measure it if i feel ok.

I'm curious as to how BMI measures anything. My bones are osteoporatic which basically means they're not as dense as someone of equal age. So, I imagine my BMI would be on the low side because of this?

I'm 40 this year :( but I still feel like I'm in my mid 20s. Why does age have to mean something? I'm yet to meet a woman my age who can hold my attention spiritually, mentally, and physically. Is it so wrong if I fancy women younger? Why does age hold so much stigma for some?

I'm 5ft8/9 which used to be the national average height. Why does it matter when I go for hospital/doctor appointments, or even when applying for some jobs?

I'm a Pagan, and there's still people who don't understand what it is or what it means. It's an earth-based belief system that also is matriarchal - the main God is female.

We're all different. Shapes, sizes, ages, colours, beliefs, etc.

Can we just stop measuring each other by all these metrics and be happy with the diversity of each other?