Why is it disgusting to eat with your mouth open?

Eating with your mouth open is often considered disgusting because it can lead to the unpleasant sight and sound of food being chewed, which many people find unappetizing. It can also create a negative atmosphere during meals, as it may be perceived as a lack of manners or consideration for others. Additionally, it can spread food particles and saliva, contributing to a feeling of unsanitary conditions at the dining table. Overall, it disrupts the social norms of polite eating.