My daughter, Australian citizen, when she arrived to study in Australia, was requested by ANZ bank to provide her Japanese equivalent of Tax File Number. She had never worked , then just graduated from high school.
Bank officer understood that she has to have a bank account to receive financial support for her studies but said it is the law and she must produce it,
Without it, no bank would open a bank account for her.
She did have the Japanese TFN (called MyNumber, credit card size, it has your picture and will be your driving license, your Medicare, your everything except passport).
I came to Thai yesterday (October 29 2025) on a non O visa, one way ticket. Multiple entries. Nobody said a word, stamped me in and even smiled at the airport immigration.
Iam the property owner. Today (October 30 2025) i went to the Immigration office and my wife (Blue Book) to report my stay. It was an ordeal but I got the stamped form.
We went o Imm together. In person. To do TM30 online, she would need to have a copier/scanner and PC and know what what to submit. Now she knows that, but ordinary Thais would have no idea.
I had never heard of TM30, 110 trips to Thai over 25 years. Only here, in this group, over last 3 months, I learned about it. Now I have to know it and just did it 3 hours ago at the Imm office.
It is a travel insurance, rarely used. Like, my colleague, happened to be in London, when that volcano erupted (2010) and stopped most of the flights out of London and around Europe. He had no travel insurance, had to pay on his own money for 2 weeks hotel, maybe 10,000 US$ until the flights resumed. That is not health insurance.