Id def do em.
Foot fetish is mostly about the individual person. For example Nicole Kidman often goes polishless and does not have her feet looking good most times but I'd do em cause they are hers. She has a pretty face. Pretty face almost gaurantees a foot guy is interested in her feet. Guys with foot fetish mostly want to know what they smell like and taste like for a certain person. It is not about wanting to taste any old foot.
There are nice feet and there are ugly feet. Yes I understand on the disecting it, why would anyone want that in their mouth. But the same could be said why would anyone want to rim an asshole and eat shit. It's sex.
For some people I wouldnt touch their feet with a ten foot pole but for other certain ladies (heteros only like fem feet) it is what I want most. Feet and faces. An ugly face means most foot guys will not be as in to your feet.
Not all feet are appealing to foot fetish guys. There are nice feet and then a majority are not desirable. For example most foot guys want a certain age. Older feet are usually not appealing unless they are a certain persons.
Also if a foot guy never gets to taste a gf's feet before breaking up, no matter what else they did he will feel he did not really have complete fulfilling sex as he looks back.