Canada

"Consumption of milk per capita has gone down every year over the last 30 years," says Sylvain Charlebois, director of the Agri-Food Analytics Lab at Dalhousie University. "Actually, it's gone down by more than 20 per cent since 2015."

While bagged milk is often cited as a unique Canadianism, it's actually not sold west of Ontario. Those who prefer it, however, say it's more cost efficient and some even believe it tastes better.