I'm pretty sure your experience was pretty normal. Most people consider the Dallas and Houston metro areas to be some of the more diverse cities in North America. So its normal to hear multiple different languages and have choice of authentic cuisines from every corner of the world.
Only people like this guy would think cities in Texas aren't diverse and worldly.
https://www.reddit.com/r/VietNam/com..._on_earth_and/
And he's got a serious case of Mako Poisoning.
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