Vietnam is a developing country with more than 90 million people panning through 3,444 km coast line. Having a nominal GPD per capita of S$2900 per year, the cost of living in Vietnam is rather low.
In Vietnam, you will see a lot of street food. The locals love street food for their variety and cheap price tag. For example a loaf of baguette with egg, sausage, grilled pork, pork floss is sold for $0.90. One cup of home made soya bean at $0.40, or one glass of street desserts for $0.60.
There are a wide range of rice and noodle dishes ranges from $2 to $3.
Similar food in proper shop with air conditioning are priced at $3 to $5.
Beside food, Vietnamese people love to drink coffee. Drinking coffee has become a culture for all generations from students to working adults to the elderly. Similar to food, you can get a glass of street “dripped” coffee for $0.70 or order in a fancy coffee house for $2.