I raise chickens, and last year, I bought 25 cockerel chicks--baby roosters. When I prepared them for their summer home (in the freezer) I saved the feet.
Chicken feet are just barely this side of my 'OMG I can't deal with THAT' line. It is the little soft pads on the bottom that skeeve me out--too much like little hands.
They do make good rich stock, but you have to separate them from the chicken, first, and then you have to scald them and peel the scales and the toenail sheaths off. Lot of trouble. My mom (one of 12 kids) said they used to boil them up on butchering day and eat them. Not me. Nope.
If you are buying chicken feet they have already been prepped. Just close your eyes and put them in the pot. I worked for a brief time at a Tyson chicken processing plant, and they shipped huge cardboard cartons of plastic bags of 'paws' to China.