If u ever been to vietnam, its a land of twinks. Majority of them are very skinny. vietnamese are opportunist even in vietnam, so they are very hardworking and work hard to get what they want, in whatever way works for them. Thai on the other hand are more relax laidback, pretty much similar to malaysian, my hometown. I guess cambodians and lao isnt much of a target because their number is small. Havent had much experience on either countries since ivr never been there.