No problem, I'll respond to that.
The Chinese came up with the crossbow as a weapon for the common soldier. Using a full bow was difficult in that it required more upper body strength to pull back the string and make accurate shots. Being able to use a full bow was relegated to an elite group. As for cocking the crossbow, you put one foot on the bow and pull the string back with both hands until it's past the latch and let go. The string sits on the latch ready to fire.
The bolt is smaller but far more accurate than a full arrow which will bend along its shaft in flight. The bolt does not do that. The downside of a bolt is its range. About 50 meters is as far as you want to try for.
The crossbow can be fired from a prone position like a rifle. And it is so quiet.
I had 2 of them made for me by a archer in Brazil. One scaled down and the other full sized. The smaller I sent home. The full size I used on missions if it fit the job. Otherwise I wild boar hunted with it. We ate good.