> The hardest part of learning to drive on the left is not turning on your windshield wipers every time you turn a corner.

This is something to learn the very first time when getting into a (new/unfamiliar) car before getting the vehicle moving.

Come to India and drive a few cars from different brands. [1] The rule is to drive on the left side of the road (so the driver is on the right side of the vehicle). But the sticks/levers to turn on the windshield wiper may be on the right side of the steering wheel or on the left side (and vice versa for the turn indicator sticks/levers), depending on the manufacturer. If you don’t check it in advance, you may end up wiping the windshield when you want to signal a turn or end up signaling a turn when you want to get water off the windshield.

[1]: Actually, it’s not recommended for foreigners to attempt to drive in India. The traffic is chaotic and one needs a different way of thinking to drive.