Can China people open barbershops in Thailand now?

No, China people can't open barbershops in Thailand. As a matter of fact, I have seen people from China open barbershops in Bangkok. But the tax to be paid seems to be higher. Therefore, most barbershops in Thailand are run by local people. In fact, Tony in Thailand is not particularly tall, so if you want to make a good-looking hairstyle, you'd better do it in Bangkok. Be optimistic about the evaluation and check online more. In order to find a style that suits you. I still hope you can do your hair in China, not abroad.