Honestly, I'd say anybody who takes their driving test in an Automatic by choice is nuts.
Even if you're happy to drive Automatics, there IS going to come a point where you'll try to rent a car/van and they'll only have a manual available or you'll need to drive somebody else's car and it'll be a manual.
And you'll be stuffed because you've only got an Automatic license.
Around 10 years ago, I booked a villa in Northern Cyprus for a holiday, the taxi company that collected us from the airport also ran a car hire company and offered a discount on car hire, so I asked for a Focus/Astra sized car. I was surprised that the car delivered was a brand new automatic Focus. I mentioned that it was unusual to be offered an auto as standard, and they said "if the standard car is auto, everyone can drive it", makes sense.
My local van hire company has auto vans too, and thats in a rural location, not a busy city location.
As I have mentioned I have taught automatic driving lessons for 9 years, and some instructors say that they teach both auto and manual and are getting rid of their auto cars as there is no demand. So I ask do you advertise that you do auto? 9 times out of 10 the answer is "No, not really". Its not rocket science !