They're not hurting anyone
Side effects may include mouth and throat irritation, and jaw discomfort
Also a great alternative for everyday or occasional traditional cigar smoker
There may be added dangers, for example if a vape battery catches fire near an oxygen tank, a propane tank (such as used in backyard grills), or a gas pump, or if a person has a vape-related seizure while driving
Cochrane is a global non-profit group that reviews all the evidence on healthcare interventions and summarises the findings so people making important decisions you, your doctor, the people who write medical guidelines can use unbiased information to make difficult choices without having to first read every study out there
That means Indiana, of course