The user interacts with digital systems through various types of input, such as voice, text, and images. For example, the user’s interaction with intelligent voice assistants such as Alexa or Siri, or voice user interfaces that combine speech and images. From a psychological point of view, multimodal interaction can improve the user experience by making it more natural and comfortable, which can lead to people feeling more familiar and comfortable when interacting with digital systems, increasing their level of engagement with these devices. However, some people may experience a loss of control over technology if they feel that these systems are unwantingly interfering with their personal lives.