Well ChatGPT is absolutely useless for anything that requires immediate and accurate answers in safety critical circumstances such as paramedics, first responders, etc.
Even so, it completely fails at explainability, and after all the initial hype and mania around it, it is still as transparent as a mystery black box, a red flag for many safety critical software.
Paramedics, nurses, and other professions are perfectly not affected by ChatGPT (Or the AI hype in general)