Thailand is far more Westernized than Vietnam, probably thanks to the fact that the former's economy has been open to the world for much longer than the latters. Also, Thailand gets millions more tourists a year than Vietnam. This Westernization is especially evident in the fashion of Thai teenagers and young adults. On the streets Bangkok you'll see goth, punk, emo, and hipster styles that either haven't made their way to Vietnam yet, or are just starting to appear. There are also Burger King, Starbucks, and 7-11 outposts all over the place in Thailand, while Western chains are still pretty rare in Vietnam, although that is changing fast.