@all the parents who advocate policing their children...
If I were a teenager at this stage, I'd have a cam whether my parents allowed that or not. The only way you could prevent this would be by policing my behaviour to a pathological degree, and that says nothing good about you and the relationship you have with me. Kids grow up into adults who *also* make bad mistakes. God knows I've made them.
Surely the best approach is to *educate* your child as to the dangers, and ensure that they're as ready to become adults as you can make them.
Speaking from my experiences with my decidedly unintelligent and controlling father, the best way to alienate your child and to achieve outcomes other than your desired ones, is to attempt to *control* them all the time.
There are stupid kids, just as there are stupid adults (no, really?), for whom the best you can do is *try*. You can't ultimately save someone from their own stupidity, though. Hilariously worded afriscams make that point.