Rory Cameron Well, you have never been asked and because of that you say don't worry. Have you ever been studying logic? I guess not. And have you ever been studying real life? I guess not that either. So please don't spread misinformation.
When coming to Thailand, you need to have
*****
baht or equivalent in other currency, in cash. If the immigrant officer wants to see the money, you have to have it.
No matter if you've never been asked. Sometimes they ask.