In the USA, you are often expected to eat greasy/oily foods with your bare hands. Things like pizza, chicken, burgers, all the slop you can think of. People will think you're mentally unwell if they see you eating a slice of pizza with a knife and fork. They say that getting your hands all nasty is "part of the experience", and you aren't allowed to question it. Most people don't even wash their hands after they eat, getting shit all over their phones. I wish I were joking.
