>car is much more convenient for families with children.
How so? Kids can not travel in cars alone because they have no license. Kids can travel in trains alone.
How so? Kids can not travel in cars alone because they have no license. Kids can travel in trains alone.
And cops are common to pick up younger kids which are around on their own because it is so unusual
Putting a kid on its own on a train would be absolutely unthinkable.
Parents can't even let their kids walk to school alone. I seriously doubt they would allow their kids to ride a train alone.
This said, helicopter parents are real. I've ridden on amtrak many dozens of times, but never saw an unaccompanied child.
Meanwhile round here in London children get free bus travel, so it's very common to see them on local buses, and sometimes trains (tends to be wealthier kids on trains).