According to U.S. law, people under the age of 18 cannot purchase and use vape products.
Therefore, if you are under 18, the TSA may inspect your vape to see if it complies with the law and require you to hand it over or dispose of it accordingly.
In addition, if you are over 18 years old but have not applied for legal identification, you still cannot purchase and use vape products. In this case, the Transportation Security Administration will also conduct inspections and regulations.
In short, no matter what your age, using vape products needs to comply with relevant laws, regulations and social ethics.