People who are unfamiliar with Tourette Syndrome sometimes think the tics expressed by a person with TS are a bad habit and if the person were stronger or had more will power could stop those tics.
Have you ever experienced someone continually telling you to "be quiet" or "stop doing that" even after explaining that tics are involuntary?
Is there an element of habit associated with tics? What about people who bite their fingernails or stutter? Are these habits or another variation of tics?
Some people express the same tic for years and even decades....has it now become a habit?