Other cultural phenomena that affect the street food market include the cultural implications of eating while walking down the street. In some cultures, this is considered to be rude, such as Japanese or Swahili cultures. Despite not being allowed for adults, it is culturally acceptable for children to do. In India, Henrike Donner wrote about a "marked distinction between food that could be eaten outside, especially by women," and the food prepared and eaten at home, with some non-Indian food being too "strange" or tied too closely to non-vegetarian preparation methods to be made at home.