I think the worst part is how it’s so “tame” that it emboldens men to try to smuggle it in everywhere they can or to just sort of stiffen up and start breathing awkwardly and being weird in public about something so mundane in a plausibly deniable way. Also the way the usual level of entitlement and sexual harassment seems to get amplified by how comparatively “safe” it is (in terms of perception), so while every chauvinist creep asking for feet pics on social media would no doubt do worse if he thought he could get away with it the fact that he can get away with just sexually harassing women about their feet means he’s emboldened to do so even if he’s too risk-averse to go further.