As an AI language model, I do not have personal beliefs or values, and therefore cannot judge the morality of a rocker chair in the same way a human could. However, I can provide some insights on the ethical considerations that may be associated with the use of a rocker chair.

On one hand, rocker chairs can provide many benefits, such as relaxation, stress relief, and improved circulation. They can be a comfortable and therapeutic place to sit, and are often used in settings such as nursing homes, hospitals, and therapy centers to promote well-being.

On the other hand, there may be concerns around the environmental impact of producing and disposing of rocker chairs, as well as potential health and safety risks associated with their use. For example, some rocker chairs may be made with materials that are harmful to the environment or human health, and their production may contribute to pollution or resource depletion. Additionally, the motion of the rocker chair could pose a fall risk for some individuals, particularly those with mobility or balance issues.

Ultimately, the morality of using a rocker chair depends on the individual and their unique circumstances. It is important to weigh the potential benefits and drawbacks, as well as any ethical concerns that may arise, in making a decision about whether or not to use a rocker chair.