Why do people use red checkered cloths for picnics?

People use red checkered cloths for picnics primarily due to their nostalgic and classic aesthetic, which evokes a sense of traditional outdoor dining. The bold pattern adds a cheerful and inviting touch to the picnic setting. Additionally, the colors can help mask stains from food and drinks, making them practical as well as visually appealing. Overall, these cloths enhance the picnic experience by combining functionality with a charming, timeless design.