As an American, it blew my mind to see people in Taiwan carrying around plastic bags of hot soup. It makes perfect sense from a physics standpoint, and the conv

As an American, it blew my mind to see people in Taiwan carrying around plastic bags of hot soup. It makes perfect sense from a physics standpoint, and the convenience of it was obvious, so my mind was only blown momentarily – but it was just so unexpected. I think that's the answer to your question: the grocery stores could switch packaging any time they wanted to, but they don't want to weird people out.