David Broadfoot "other form of ID " 😆 this answer helps him nothing!!
Read his question properly "do you need passport "
And normal people would answer "yes ofcourse you need it" he doens't mention ID card at all !. 😆 why ?? Only one reason because the airline staff has to proof the ticket belongs to you.
Not all people have thai driving license like you specially if he just a regular tourist. He could missunderstand your statement.
David Broadfoot practically is NOT the same like theory. Try to show your ID or driving license from your country during checkin and you will know what happen. The same idea, thai people can't just show thai driving license or thai ID in USA or other country !.
David Broadfoot the question he asks is wheather someone need id or not. There is only one form of ID (passport OR Identity card). Driving licence or other similar card is not an ID. If you are farang than you need your passport because your national ID isn't valid in other country. Maybe they accept it but they can and have the right to refuse it if they want ! Passport is an international ID and national ID is by law only valid in your original country. Is that simple. Read the last page in your passport and you will find the international accepted statement. It says " for all countries".