Curiosity only.
Here in Brazil it’s very common to have several showers a day. I, for example, take two. The first is when I wake up, before I go to work, and the second is when I get home from work. I wake up at 6.30am and get home at 8pm.
edit: I said bath, but I meant shower.
Typically once every other day, depending. I spend most of my average work week inside at home, and my very thin hair responds much better when I only wash it every 2-3 days. If I’m going out or otherwise get dirty/smelly, it’s cleaning time regardless.