Tone of your voice

You know when there's a cute baby, how adult raises the pitch of the voice and talk to them with a baby-talk? How news-casters talk / narrate on TV? You would change the tone / pitch of your voice or change how you talk per situation.

You will see them very clearly when you visit Japan. We all have different tone of voice to begin with. But when Japanese person is working at the counter (like airport, restaurant, etc.), all workers will be using high-pitch voice (like octave high-pitch for women). Men won't be using octave high-pitch voice, but they will raise alittle high. It's a Japanese custom to talk in high pitch as part of the service.

Don't worry, the high pitch tone to talk to you doesn't mean they're treating you like a baby. It's just the way that people are trying to be nice to you to serve you better.