Ok now here is the point
You live in Scotland and have lots of nice driving roads and never get stuck in jams
We get stuck in jams!
If only! I am currently commuting to Edinburgh from the west coast each day, 150 miles in total along the M8. That includes the Kingston Bridge, which is (allegedly) the busiest in Europe. Usually I time it right and miss the worst of it, but I do spend time sitting in traffic. The fact is though, it's the impatience that gets me way before I get fed up changing gear, so being manual doesn't really make any difference to me in traffic. Usually the traffic doesn't stop dead so you don't have to shift much if you don't want to, 2nd gear will go down to 5 MPH and up to 60 MPH so that covers 90% of the time in slow traffic (personally I do still shift up and down as speed changes but that's because it doesn't bother me).
I was in San Francisco a few weeks back for 2 weeks and hired a Mustang convertible, needless to say it was auto cos there are so many Americans who can barely drive at all, let alone drive manuals, that the mainstream rental companies don't rent out manuals. I got caught in a really bad jam on the freeway when driving to Yosemite, and to be honest the fact the car was an auto didn't make it any less of a nightmare... I was just totally p155ed at being stuck going nowhere fast. And of course when I got onto some really twisty roads nearer Yosemite (it's very hilly) that gearbox was a nightmare.
Horses for courses... I hate driving autos (including tiptronic and all that crap), and clutching and changing gear isn't the least bit of a hindrance to me, it's as much part of driving as steering. If I'm tired enough that I can't be bothered changing gear, then I'm also tired enough to not be bothered driving at all, and will get someone else to do so. I guess I take the driving instinct from my dad, he's obviously a lot older than me, currently drives a BMW 330Ci sport manual (cracking car to drive BTW, even if it does have a bit of an image problem) and has no intention whatsoever of buying an auto, he still enjoys every bit of driving, even though he's not as aggresive as me in his style these days.
On a sidenote, I've never tried an SMG on the road... I'm absolutely sure I'd prefer it over an auto, getting rid of the torque converter with its rubber band effect is a big plus, but no guarantees I'd like the experience of it even though it's technically superior to a manual (same gearbox and clutch as a manual, just hydraulically activated so can shift really quickly and also blips the throttle on downshifts!)