I recently moved from a very low average income city to a very high average income city. In my former city it was nearly unheard of for children to unsupervised, despite most people having large families, because there was a very real concern about kidnapping/human trafficking and other issues (and this concern wasn't unfounded, this city made national news for masked men in a van grabbing multiple children while the…
When I grew up in India, we were dirt poor and we literally hitchhiked to and from school each day from the age of maybe 7.
Students would get out of school, walk to the nearest busy intersection, and ask people to let us ride on the back of their motorbikes to get home. No helmets, no traffic lights, no sidewalks, no cell phones.
This wasn't in some rural area - this was in central Mumbai decades ago where people were poorer than the poorest US neighborhoods. ...yet the danger of being kidnapped or assaulted was effectively zero. It was far more common to be attacked by a stray dog than by any of the millions of dirt poor people in the city.
One factor (my guess - I observe anecdotally) is the high rate of drug use in the US. Drug use among the poor in India was extremely uncommon. However in the US (at least these days), it seems to be common among most people arrested (just my observation).