I am very zero tolerance towards kids vaping in school bathrooms. It's honestly the annoying and stupid thing other students do. Do it outside in your personal time, wait til you are 18 and I don't care.
However don't post a video of reporting them
Gender-affirming surgeries have incredibly low regret and people who destransition are just 1% of people that start transition and about half of that 1% only do it due to transphobia not because it was a mistake.