What side of the road to they drive on?

At this point, I am so confused, I have no idea.  Don't let me in a car.

Hawaii -- it is the US, and I think I remember that we drive on the right.

Japan -- they drive on the left.  Why?  Right handed Samuri wear their sword on the left.  They walked on the left so that no one would bump their sword.  In fact, if you bumped a Samuari's sword, he could cut your head off.  So that created a great incentive to keep the Samuari to the left and the oncoming traffic to the right.

Shanghai, China.  Thinking back to the bus who almost ran us over, he was on the right.

Hong Kong -- used to be British -- drove on the left.

Vietnam.  Pretty much any side they wanted, in any direction.  Mostly on the right, unless you have some reason to want to be on the left.  Scooters all over.  We saw a small scooter/bike accident when the bike was in the middle of a stream of scooters going the other way.

Myanmar.  They drive on the left with right hand drive vehicles.  They cannot afford new cars or buses, so they use mostly ones imported from Japan.  The bus has a driver and a helper -- the helper has to look to the left if they need to turn or change lanes.

India.  Mostly in the middle, neither on the right or the left.  Roads are narrow, and drivers seem to go in the middle until they meet another car and go to the left.

When we get to Mauritius, we don't even know if there will be cars.....