People do overestimate the number of adults trying to prey on children, but the impact of grooming (or worse) can be so awful it ruins a kid's life. My family is now 5 years on from an incident of attempted online grooming that resulted in a conviction, and my kid is still suffering. Parents should be vigilant and monitor their children's online activity - in our case we detected the problem before any physical damage was done, but it only takes a few days for a pedophile to cause huge emotional trauma.
Forgive my ignorance, but what is "grooming"?
If answering this question opens any old emotional wounds, please just ignore the question.