
Jonathan S. answered 10/23/19
Math Tutor, Substitute Teacher, & Behavioral Health Consultant
Speaking as a Behaviorist,
Behaviorally, fidgeting is not a problem unless it affects you in a way that makes it difficult to live a socially appropriate and typical life. Fidgeting is an Automatic (Sensory) behavior, which means it reinforces itself by simply engaging in the behavior. Behaviorally, fidgeting frequently means you have a psychological need for physical stimulation, which requires you to self-stimulate yourself. As long this self-stimulating behavior does not interfere with you living your life, it is not maladaptive (a problem).
If it bothers you that you engage in the behavior, or it begins to cause you physical or social issues in your life, you will not be able to completely stop the behavior until you can replace it with another (more appropriate) behavior that can still allow you to access the physical stimulation you need, at a high enough frequency to reinforce your learning of the behavior. The new behavior must also be easy enough to engage in, that you will not go back to the old behavior, which became a problem.