1. Taste preference: Children may have a natural preference for sour taste, and vinegar, as a common seasoning, may perfectly match their taste preferences with its unique sour taste.
2. Digestive promotion: Moderate consumption of vinegar can help promote gastric acid secretion and improve digestive function. For some children, they may feel that food is easier to digest after consuming vinegar, thereby increasing their love for vinegar.
3. Family habits: Children's eating habits are often influenced by their family environment. If someone in the family frequently consumes vinegar or likes to add vinegar to food, children are likely to imitate and gradually develop such eating habits.