为什么泰国基本上接近热带，一些泰国人看上去还是白白嫩嫩的呢？

白皮肤的都是华裔或者有华人血统，这个是泰国人自己都承认的，尤其是曼谷，白皮肤泰国人几乎都是有华人血统的。

像红迪泰国板块，就有人认为在泰国，拥有中国血统是一种身份象征，因为在泰国白皮肤就像是高阶层人士，而穷人、低阶层多是皮肤黝黑。

所以有中国血统，就等于你是白皮肤。

顺便还有个冷知识。

摘选一些评论：

Is having Chinese ancestry a status symbol in Thailand ?

在泰国，拥有华人血统是身份的象征吗？

I have noticed that in some fights between Thais and Cambodians sometimes Thais bring up that they come from southern China and that Cambodians are aborigines. I have even noticed it in some discussions between Thais and Vietnamese, which is ironic since Vietnamese are precisely the ones who most resemble people of southern China.

我注意到，在泰国人和柬埔寨人的一些争吵中，泰国人有时会提起他们来自中国南方，而柬埔寨人是土著。我甚至在泰国人和越南人的一些讨论中也注意到了这一点，这很讽刺，因为越南人恰恰是最像中国南方人的。

If you paying attention you will notice that the majority of thais middle or upper class are all having some chinese ancestors and most of them look quite different from the "thai" people in the rural area

如果你留心观察，就会发现泰国的中产阶级和上层阶级大部分都有一些华人祖先，而且他们中的大多数人看起来与农村地区的“泰国人”截然不同

When thai company take over vietnamese brand. Some of vietnamese will call us thai a chinese puppet who trying to take over vietnam, just because some of us has chinese blood.
Even thai kpop idol, the kpop fan will alway bring up they ethnicty and call them chinese, is kinda like call a american kpop idol a irish just because his ancestor migrate from europe
当泰国公司接管越南品牌时，一些越南人会称我们泰国人为试图接管越南的中国傀儡，仅仅因为我们中的一些人有中国血统。

即使是泰国的韩国偶像，韩国粉丝也会提到他们的民族，称他们为中国人，就像称呼美国的偶像为爱尔兰人，仅仅因为他的祖先从欧洲移民过来一样

Having pale skin is the only status symbol regardless of ancestry. The vast majority of pale skinned Thais have a significant amount of Chinese blood, and many don't know their ancestry.

无论血统如何，白皙的皮肤 是唯一的身份象征。绝大多数白皙皮肤的泰国人都有大量中国血统，许多人不知道自己的血统。