Personal privacy: Losing weight is a relatively private topic, and some people don't want others to know that they have weight problems. In some cultures, weight and image may also be influenced by social sensitivity and aesthetic concepts. Therefore, weight-loss shops may avoid hanging banners to avoid discomfort.
Business strategy: they choose not to hang banners because they pay more attention to the realization of customer goals and service experience, rather than paying too much attention to publicity and appearance. They are more willing to devote their energy and resources to providing high-quality weight loss programs and personalized services, rather than overemphasizing the decoration of signs or banners.