So feet are a zone of the body that are extremely receptive to touch. They can 100 percent be part of non fetishist sensuality. A foot FETISH is when the attraction to feet becomes either obsessive or the main focus of sexuality.
A feet based sexuality to the point of fetish isn't wrong either unless the person has unresolved issues around it and engages in anti social behavior around it. It is very possible for literal fetishists to make the fixation unhealthy and many women who are attractive in less conventional ways need to pro actively guard against dating a fetishist because of how actual fetishists can treat their partners)
Some people are like, abnormally disturbed by feet and think any engagement with them erotically is a "fetish." It is not. Also foot based practices tend to go up during times when STDs spike, so a foot focus can actually be extremely well adjusted and healthy.
Interior therapist could be a job for a person to like, make a home more accessible or easier to clean for people with various conditions. This is just, misogyny