Replace ‘Japan’ with ‘metro cities in India’ and its almost the same. I can’t still fathom why there would be no walk in facilities for ailments like cold.
I still remember my shock when in US I realised from a colleague that for my cold I need to wait because I can’t walk in and need to take an appointment.
(Amusingly, I was in London a few years ago and came down with a cold. One of my local colleagues told me about this amazing thing called paracetamol that was just magic and would make me feel better. I was astounded that we didn't have it back home in the US... until I looked it up and realized it's just acetaminophen under a different name.)
That's such an american thing to say. A flu can be swine flu and fever can be Malaria or Dangue and one day delay can mean losing your life, so people in many parts of the world take fever and flu seriously.