We have to depend on the basic goodness and decency of others, just as they have to depend on that in us. We can screen and monitor, but ultimately we have to trust. Trust must be earned, and in our fragmented world, it isn't earned easily. So when we impose regulation to replace trust, we do so running scared. For some parents at least, for some time at least, there will be renewed awareness of the need to stay closer to their kids' lives.
Adolescents lead much more independent existences than before.
They have less contact with adults and more with their friends. They are, in this narrow sense, safer. Adolescent prodigies are different. Their lives are crawling with adults, who hold tightly in their hands rewards and self-image. These kids are the most vulnerable.