In Japan, people sleep on the train. Bag on their lap. Phone in their hand. Wallet visible in their pocket. Drunk salarymen at midnight. Schoolgirls coming home from cram school. Grandmothers dozing past their stop. Not because nobody is watching. Because nobody is reaching. Think about the last time you fell asleep in public and didn’t wake up checking your pockets. Most countries can’t do this. Japan does it every day on every train in every city. Quietly. Without a single sign telling people to behave.