Intercourse engineer and relationship therapist, Colin Richards, describes that many intimate fetishes resonate with us from an experience that is early. Our therapy developed from childhood discovers memories that manifests it self as a desire that is sexual. This might be associating feet with all the kindness of an instructor, ergo stroking foot helps them feel calm and relaxed that may lead to a scenario that is sexual.
Further, through Pavlovian thinking, if one discovers foot fetishes through the very very early many years of their intimate engagement, they are trained to possess a base fetish.
Since you were an adolescent though you may not realize your sexual fetishism until you are a twenty year old adult, there’s a high chance you have had it.