Then I'm going to have to tell my driving instructor he's full of shite.
Most are.
I started with one instructor who I'd explained my situation to (I'd driven for years in the US so I knew how to drive, but needed to learn to pass the test). When I got in the car and made some comment about how it was different driving on the other side of the car, the other side of the road, shift on the other side, etc, her reaction made it quite clear she hadn't thought about the US/UK differences. I thought I'd made it super clear that that was what I needed help adjusting to.
Within 5 minutes, she had me driving through a width restriction thing and it was the scariest thing I had to do. First time driving in the UK, in a new car, on roads I don't know and having to guess how close I am to a barrier when the road and the car are mirror images to what I'm used to.
I quickly switched to an instructor who made the change between the UK and Spain regularly and he was infinitely better suited to my needs. He had his own quirks and didn't have much patience for me practising parallel parking and reversing around a corner, but he knew what I needed help on and I passed first time around. I doubt I'd have had the same success with the first instructor.