I recall that Channel 7 San Diego did a 7 part series on the rise
child sex trafficking and exploitation in the county and beyond. Yet another clue. Also, there was the following statement by the UN: "Rising human trafficking takes on horrific dimensions; almost a third of victims are children." Next, if you wish, add in the drug problem and number of children whose lives are affected by that. Next, look into the rise of youth gangs and related violence in both suburban areas and inner cities. As for statistics, it is quite easy to use probability and statistics to reach a false conclusion (e.g., null hypothesis, confusing statistical significance with practical significance, etc). Smart people should always be suspicious of statistics.
Finally, if you really think children are safer today, believe the statistics, take yours into the south side of Chicago (e.g., around 138th street south) and turn them loose to run around like I was able to do in my youth when visiting relatives there.