OK, I'll just post this and then stop.
The young smartly dressed male in the photo above must be like lots of young males who don't consider that they can die.
Here he is in a collection of short animated GIFs, climbing the face of Half Dome without any safety ropes.
Safety ropes, when used by a skilled climber, don't do anything and basically just get in the way and slow you down. But you use them for a reason. In a three hour climb, where you get a new new handhold or foothold about 10,000 times, you have 10,000 chances to make a mistake that kills you. You may have mad skillz and great stamina, but the math is going to eventually work against you.