I (21f) am 5'5" and skinny. I recently attended a self-defense class, and there I was tought how to use a pocket knife. And as I have some male friends 6'5"+ tall, I thought that that height actually makes their belly particularly vulnerable in case of a fight (compared to a short guy/girl):
- a short person's shoulder height is around the same level as the the tall person's belly making it easier to stab/hit;
- a tall guy's belly is proportionally a larger target.
And in general, if a 6'5"+ guy stands in front of me with his stomach released (even if he has just a bit of a belly) it feels like having an exposed, large and squishy punching/stabbing bag right in front of me, into which, if needed, I can easily harshly and deeply plunge anything straight away.
I also practice historical fencing (rapier) and most of the times I stab tall opponents into the belly - my favorite thrusts are ducking counterattacks when I duck while they attack, go low and impale a tall guy's unprotected belly right onto my rapier.
Because the average 80 year old man can overpower the average 21 year old woman.
Crazy graph but I'll attest to it. The difference in pure strength is just massive. We wrestled a lot in the army and our unit had women as well. One of whom had taken taekwondo most of her life. None of them stood a chance against me, and I don't lift and had spent the previous months smoking weed and drinking beer and watching movies. Still, there was absolutely no contest. Even the girls about my height ans weight had no chance. They had more chance than the smaller ones, but still, it was below what most of the shorter dudes could give. I'd say perhaps one of the smaller guys might have lost a bout to one of the women, can't recall, but the point is it was just ridiculously clear how much testosterone makes a difference, even without training or even when women have trained.
And this is not me saying I can beat all women in wrestling, far from it, I wouldn't stand a chance against even an amateur hobbyist wrestler, but we had no-one who actually wrestled. Well except for one guy, who literally was a semi-pro, had ranked high in European wrestling or something. Dude could toss one of those massive medicine balls to the ceiling of the gym when I got it barely a fifth of the way there or something. He wasn't made to wrestle with the women. Or much anyone. Actually I think the lieutenant made him coach a little iirc.
Anyways. Agree with your comment, thanks for the neat graph.