I don't believe it is old age; but then some of our younger members might disagree !
I have driven left hand drive and right hand drive frequently. Including my rhd frequently to Spain and back.
I have lived four times in left hand drive countries.
Driven four on the floor and 3 speed column shift.
I have only ever driven in UK, Europe and the US.
I don't know how many American cities (some with their 12 lanes each way) and in all types of extreme weather.
Madrid, Paris and Milan were the worst. Dallas and Chicago a close second.
After all this, I still find my autonomic unconscious driving the wrong car very occasionally!
Unfortunately, I know of two people, both Americans driving in the UK, who struggled with the challenge of driving on the wrong side and drove head on into oncoming traffic.
I nearly did the same when first living in (a very depopulated area of) the US.
My advice to anyone new to driving an automatic is keep that left foot firmly on the floor.
As I have mentioned previously, in this Forum, failure to do so can create some real excitement with any drivers following.
Finally, I confess, I still have not become fully cognisant of the wipers and indicator stalks being reversed (compared to European made and specified vehicles) on my Alphie. The American style foot brake gets me too sometimes. But that's my issue, not the Alphie.