Lots of students have trouble with this, even if they're generally fine when standing still. But spare a thought for the Swedes in 1967. Here's a picture of the first morning after Sweden changed from driving on the left side to the right. Nigeria did the same, in 1972.
Now, Britain, Japan, Australia are the only ones people can name as left-road drivers. But there are in fact 74 (compared to 166 right-roaders).