I didn’t look at the guys — I accidentally cut their car off (they had to expend a bit of precious energy braking and beeping, no danger of an accident). All I can think is that cars make people territorial — they’re an extension of their home and not to be “disrespected” wheres a commuter train is not.
Don’t know about eight year olds, but I definitely see some 10-12 year old looking kids riding the bus to school with a Metrocard in NYC.