In cities in the US, it's similar. They have full size vans that aren't particularly custom for routes where the delivery person gets out and walks to the mailb

In cities in the US, it's similar. They have full size vans that aren't particularly custom for routes where the delivery person gets out and walks to the mailboxes. These new vehicles, and the ones they replace, are largely for suburban/rural deliveries where they drive right up to the mailbox, and so need a right hand drive vehicle.