1. There are few hot dog shops in China. Because hot dogs are western-style fast food, the flavor and concept are not as popular as traditional diets such as noodles in China, so the demand is low, resulting in few hot dog shops.

2. The brand awareness of hot dog shops is relatively low in China. People don't know much about this kind of fast food and will not take the initiative to choose, resulting in few people opening stores to sell hot dogs.