Thanks for the input, I have some responses in order of argument posted
You are a dirty hippie: yeah I get that shit a lot, I look the part too, long hair, mustache. I would argue that writing off my desires and ideas because of that is stupid, and some form of classism.
Smell/bacteria: Like Spinzoa said, flip flops don't change anything, and shoes collect foot smell like it's literally there job. Hell, sometimes I don't wear shoes because they smell like... shoes. Whereas my bare feet, when not clogged in sweat collecting fabric bucket, smell pretty dece. Same for bacteria.
Blood, shutting down restaurant if accident: I don't know about you but I think restaurants generally try not to have sharp shit on the floor that will cause massive blood loss and if they can't manage this maybe they should hire someone. You cut yourself on a knife in a restaurant; do they sound the alarm and close it while they bleach everything? No. Safety is generally a personal choice with some exceptions where it can save your life and stop your death from impacting your loved ones.
There are more worthy causes, bigger issues, and you think you should challenge everything: Yeah there are bigger causes. There are bigger causes than animal shelters, but shelters get millions of dollars. There isn't one cause that should be helped over another, that's an opinion. I also think we should challenge everything we see as wrong, especially for me in this case when I completely disagree black and white. I would say the majority of bullshit we put up with in life is petty and easier to ignore, but that's not how we get rid of it eh?
Interest of restaurant: I agree, they probably don't want to freak customers out and they have the right to dictate who they let in, but I am not arguing whether they have the right, I am arguing whether they should exercise it/is it appropriate.
It's gross: I actually just don't care, people can deal with a random, non-sexual part of my body like people have to deal with haircuts and armpit hair and low cut shirts that they don't like on others.
what else NS, still disagree?