Some countries have left hand drive vehicles while other have right hand drive vehicles. Personally, I have driven both and found it confusing at times. So, have you ever tried driving a vehicle which had its steering wheel on the opposite site ? Will you find it confusing if you go abroad and have to drive on the other side ?
I've had experience driving both. I think as long as you're used to it and know the laws well, you will be fine. What's more confusing for me is when I'm a pedestrian and not knowing where to look when I cross the street. haha.
