Why don't we use toe prints?
As a method of identification. This wouldn’t work for crimes but for bodies. Missing persons.
They offer little kits for parents to use DNA samples etc. Finger prints are prone to burns, scars, general wear and tear.
I imagine the concept between finger print swirls and toe swirls are identical and typically toes are protected in shoes.
Often there will be some toe nooks or an inked print of a foot and hands at birth. Has this method ever been used in a kidnapping or missing persons case?