I don't consider it a fetish for some of us.

Fetishes are used to enhance a sexual experience. Age gap in relationships for some is obligatory.

One man said if he sees someone his age, he might as well have a vagina. He experiences no sexual desire for a contemporary.

For some, the daddy/son role play is a kind of fetish, where "Daddy" or "Son" is used as a term of endearment. It carries with it some elements of S&M-light.

But for many of us it is just another element of our sexual attraction.