“…Although children's preferences in general are affected by their social and cultural environment, such influence through social learning tends to increase when children grow and their cognitive operations progress through interacting with environments and surroundings (Bandura, 1977;Shaffer, 2009). Built on the notion that preferences for curved visual objects can be learned through experience related to the nature of an object's contour (i.e., association of curved shapes with safety and warmth; association of pointed features and sharp angles formed by straight lines with danger and threat) (Bar and Neta, 2008), a recent study empirically revealed that children's preference for curved package design increases with age (Zhang, 2018). In combination of the fact that children's aesthetic development is more influenced by culture when they are at the concrete operational than the pre-operational stage, owing to cognitive development and social learning (Bandura, 1977;Gardner, 1981Gardner, , 1990Kindler and Darras, 1997;Piaget, 1947Piaget, , 1950Toku, 2001), it is expected that the effect of culture on children's preference for curved package design will change with age (i.e., age-culture interaction).…”