@Chris *********
Well, I use it e.g. for check in in a hotel without passport. But a bit more advantage for the yellow house book which you then have for sure. E.g. getting things (car, moped, internet) on your name. The biggest advantage I had was one and a half year ago, when I needed to stay 12 days in a university hospital for Covid. 2 people in the same room had to pay 4,500฿ a day (but where insured as a Tourist) and I had to pay nothing. So saved me 54,000฿. Really need it ? No, but sometimes nice to have.