I stopped using soap a decade ago. The only time I use it now is for rare occasions where I get something on me that requires soap, such as motor oil or chemicals. I also only wash twice a week or so. People always recoil when I tell them, but then I ask them what I smell like to them. They say I don't really smell like anything. The first month was the worst, because my skin took time to adjust to not having its oil…
People used to avoid washing it very often back when soaps were harsher and conditioner wasn't really a thing. It's why shower caps exist.