Eating every day isn't even a requirement. Most people just expect food which makes them want it. You can easily go a day without eating without feeling hungry.
Ok @sir_spiderman the point he is trying to make is that bathing every day is not completely necessary, while eating is. Someone could say the same thing about getting up and walking around, while it might be a bit of an extreme example, you don't need to get up and walk around that same day, but you could. It's not necessary to do so to survive, but you could. Also when you shower every day, your skin over produces oils basically negating taking a shower every day.
You can clean yah stinky bits without having to 'shower' or stand under hot water which is, in fact, very harsh and drying on your skin. But that's none of my business.
Every other day for me, sometimes every 3 days if it's winter.
Even then I have to put lotion on my skin after, otherwise it gets super tight and I itch like a mofo.
I shower every three days. Showering every day can dry and damage your skin, and also fuck up hair like mine. I mean, it’s not like I do any physical activities in my daily life, so. ¯\_(ツ)_/¯
Showering everyday can damage your skin
Even then I have to put lotion on my skin after, otherwise it gets super tight and I itch like a mofo.