Communication between people involves not only words, but also facial expressions and gestures, and lovedolls cannot provide such interaction. Second, dolls lack the complexity and depth of humans. No matter how similar they look to humans, they lack human thoughts, emotions, and personalities.

Custom sex dolls have preset human behavior patterns and cannot adapt to changes in the environment or situation and cannot show their own individual characteristics. In addition, dolls cannot provide the emotional connection and interaction that humans have.