'in' and 'on'

[Unregistered]

Why do we say we 'get 'in' the car but we get 'on' a train? Why don't we say we're getting 'in' the train? Thanks, Leah

[konungursvia]

Sorry, there's no reason really. Perhaps we feel that cars, like buses and horses, are very high, so we get "on" but cars are low so we get "in."