Pretty much. I think the foot fetishes all originate from one universal fetishist's story. This is purely theoretical but hear me out:
Little boy, under 8-10 years old, has his first sexual experience beneath the table. His mother is a dominating but loving bitch who coddles and shields him. One of his few moments of freedom is when he hides under the dining room table. During this time he is privy to close up views of not only his mother's feet, but his aunt's feet and all the female friends who come over to talk about their issues. The combination of privacy, freedom and power, the joining of safety with voyeurism, not to mention the forbidden odors and most likely the girl talk surrounding him must be overwhelming.
So the foot guy carries that with him his whole life.