I just went to Tibet last month and stayed for more than half a month. Most restaurants in Lhasa are Sichuan and Chongqing cuisines, and the consumption of ordinary food is high. A bowl of noodles in any small restaurant is almost 20%, because of the high transportation cost and high plateau pressure. There are also many people who believe in ordinary food and pray for prayer beads. Local people's income is mainly used to worship temples, but foreign tourists also buy a lot of souvenirs, and business is still quite good. The most important thing is to choose your own location and consider traffic problems.