When I first started bowhunting at 11 we used kisser buttons on our recurves but when we switched to compounds we got rid of the kisser button. I guess I dont understand the need for a kisser button. Most bows are equipped with draw stops. Even before the draw stop I always thaught if you were at full draw with the pin centered in the peep and released properly you would hit where you were aiming.
You're right. There really is no need for a kisser button. One could also argue that a baby does not need a security blanket. He is secure without it. But it gives him the feeling of security. Likewise, (not intending to compare some shooters with babies), it makes some shooters more comfortable.
Since all we need for accurate sighting is three points, we really don't need the peep either. We need (1.) the eye; (2.) the pin; (3.) the target. What the peep does is insure that our eye is lined up as one of those straight-line coordinates.
The kisser button can help do that in the absence of the peep, but the kisser button is not part of the sighting alignment. Shooters who use a kisser use it to give themselves a consistent anchor point. Some shooters use a knuckle placed in a specific spot on their face, jaw, neck, whatever. Those who have trouble with a consistent anchor point can remedy that problem with a kisser button. Most people who use a kisser button and a peep could learn to shoot without the kisser. Most probably could also learn to shoot without the peep.
When the Everyday Hunter
isn't hunting, he's thinking about hunting, talking about hunting, dreaming about hunting, writing about hunting, or wishing he were hunting.