>>212875113these numbers are partly false reporting due to feelings of shame and expectations
italy is barely a first world country. they still have a chip on their shoulder about cleanliness. that's why they claim to shower daily.
all the rest simply don't care that much. they are okay with not showering on weekends.
also temperature/weather. italy is hot. it simply feels good to rinse the sweat off. the further north you go, the colder it gets, the less you sweat.