How easy is it for an experienced manual gearbox user to switch to automatics and left-foot braking?

I've been following the thread about left-foot braking with interest, as I've been considering switching to an automatic next summer when my Motability Ford C-Max is due for replacement. I can see the logic. However, how safe is a driver after switching? I've been driving manual cars for 30 years, and the procedure for braking with the right foot is deeply imprinted. In an emergency, when stopping quickly is imperative, how can I be sure that I would not automatically try and brake with my right foot, with possible devastating results?

Asked on 13 November 2010 by MO, Chilworth

Answered by Honest John
Left-foot braking is essential while manoeuvring or just after starting your car on your driveway to stop you killing someone. Out on the open road it is an acquired skill that most drivers can acquire, though the confused and befuddled cannot. Very soon, it becomes perfectly natural. And there are no problems going back to manuals. I switch between about 60 autos and about 90 manuals every year.
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