People are crazy.
When I was at school (80s) we bathed once a week and washed in between.
As a teenager we got a shower and while my dad showered every day no one else did.
I shower 3 times a week and wash my hair twice. Any more and my skin is parched. I have thick coarse hair that takes hours to dry.
I wash my genitals and do skincare routine for face every day at the sink:
People don't all smell after a day. Some people sweat more than others.
My DH is very sweaty. He needs to shower every day. Gets a hair smell after a day, has sweaty palms etc. I barely sweat (no I'm not Prince Andrew) apart from under very extreme circs. My make up stays in place a long time compared to colleagues.
Our daughter has commented how I 'don't have a smell'
People who think not showering every day/more than once a day is gross need to get a grip. Proper first world luxurious views.
Also - I notice a lot of people commenting that they shower every day because 'it wakes them up'. I also don't need that. I wake up and am awake. Don't press my alarm snooze. DH is a serial snoozer, and NEEDS his shower to wake up. I suspect the overshowering is causing his skin to produce oils and smells because it is dried out constantly with soaps/products. Just a theory though.
Basically everyone has different needs.