Bitcoin has not yet been designated as legal tender in Thailand, but Bitcoin can be used to pay for goods/services. Only for entrepreneurs, service providers, and individuals who voluntarily accept payments with Bitcoin.
For example, Thai people use this hashtag to buy and sell there products/services >> #ตลาดทุ่งม่วง
And you can check the stores in Thailand that accept bitcoin at this website >>
Ps. Thailand is going to have a big bitcoin event in Bangkok named #TBC2024 in the next few months. (Mid-September 2024) If interested, details can be found here >>