Well, for most of the late fall to the early spring, when the weather is cool enough, I practically live in my 9th Doctor outfit - changing my jumper, of course. (It sort of goes with my 9th Doctor hair cut - a leftover from my military career.) And then there have been those formal occasions (concerts and such) where I've worn my 1st Doctor outfit. I've gotten compliments on the look of that 1st Doctor's outfit and questions like "Where did you find that great-looking coat?" (And I've had to tell people that a seamstress friend made the coat for me, so it's a one-off - gotten a few disappointed faces over that one.) For less formal occasions, like when I've taken the wife out for dinner, or for our daughter's (a.k.a. The Evil One) college (university) graduation, I've worn my 11th Doctor Series 5 or 6 outfits.
(And for those curious about it, yes; we really named our daughter Nyssa - were expecting a boy and had loads of names picked out, and she turns out to be a girl: mental freeze... no girl names on any list... think fast... still took three days to reach a compromise with Nyssa. I suggested Romanadvoratrelundar - seriously, I did. I told the wife we could just call her "Romana", and it was my way of getting even with all of those people that look at our last name, say how thankful theirs isn't so complicated and sound so relieved when they see our first names; it would serve them right to struggle through that last name when looking at a class roster, and then come to her first name and have their brains melt out through their noses. Still, the wife said "Oh, hell fracking no!"
and suggested Nyssa. So, Nyssa it was.)
Now, back to my other 'Who' clothing...
Since starting this (wearing my Doctor clothing outside of conventions) starting back in 2008 when I was still working (before I got hurt), I've only had two people recognize <pun coming> who I was dressed as. One recognized my 9th Doctor outfit; it was at The Evil One's university, and he was one of those... erm... sadly stereotypical "fan boys" you'd expect to find still living in his mother's basement... playing video games during his school breaks: overweight, greasy hair, showing nasty yellow teeth with his crinkle-nosed "fan boy grin" as his eyes followed me as I walked by. <shudder>
The other was a young waiter at a restaurant when the wife and I went out for our anniversary, sometime in 2011 (after I'd gotten hurt and shortly after I retired because of it). I was in my 11th Doctor Series 5 outfit (with the burgundy wavy lines shirt I got from Steve Ricks, thankfully just before retiring). The waiter smiled and gave me a "thumbs up". (A much better reaction.)
And now is the time of year I slip into my 9th Doctor clothing. So yes, there is at least one other person here that does indeed go out in public dressed as the Doctor... though, on the occasions when you do, I never introduce myself as "the Doctor"; if someone tries to make conversation with me, I simply start with, "Hi, I'm Dino." If they comment on my clothing looking like "the Doctor's", I usually look at what I'm wearing and say "Really? Okay... yeah; maybe I do." (To be fair, regarding my 9th Doctor outfit, I've been dressing like that since the 1970s: V-neck jumper, black jeans, and leather jacket, so one could even say that Russell T. Davies stole the look from me. Granted my jacket was a different style, so when I finally needed a new one, I thought turnabout would be fair play and hunted down the "U-boat captain" jacket to replace it... and even, carefully, removed that one button from the belt in the back - it gives me an extra spare in case I lose one: one more than the spare the jacket came with.)
The only other complete Doctor outfit I've got is the 2nd Doctor's, which is one that was put together purposefully with a baggy look to it. My seamstress friend made the mourning frock coat a little oversized - and the pockets are huge pouch pockets, which took hours of researching images to get a good look at to get them as accurate as possible. The shirt ("The Three Doctors" style) is a leftover from my 1860s living history days, but it's got that large floppy collar. The trousers are a size too large, and the little polkadot bow tie is one The Evil One made for me using screen grabs for a pattern reference, and the only way to hold it onto the shirt collar is with a safety pin, just like the original. Needless to say, I keep that one - along with the wig - for the conventions only... though one day I might
wear it for something else, but without the wig.
I had a 3rd Doctor outfit, but over the years I outgrew the shirt and moths got to the jacket. I've got what's left of my 4th Doctor outfit: the scarf, which my wife made back in 1983 while my ship was on patrol; the yard is acrylic so it was spared from the moths. And like you, Russell, I do wear it out in the winter when it's cold enough; it's stretched enough that I can even share it with the wife, which people think is the "loveliest thing"... but no one so far has recognized it! (Go figure that one!)
I'd have gotten more Doctor outfits made had I not gotten hurt and been forced to retire and unable to find work, and had my seamstress friend not moved 9 hours away to care for her ailing mother (but family always comes first as I always tell everyone).
So for now my only complete Doctor outfits are 1st, 2nd, 9th (with all jumpers but that elusive green one with the seam running down the front - hunt still on for that one), and 11th (Series 5 burgundy, with both Harris and Donegal Tweed jackets, Series 6, windowpane shirt ("The Doctor's Wife" for one episode it appears in), "close enough" other episode shirts and Shetland Tweed jacket, bow ties (courtesy of Mrs. Bow Tie), and more "close enough" boots. The Tweeds gotten on the cheap from eBay; the shirts again on the cheap from Macy's, and the boots on sale from Sears (when Sears was good). And all but the 2nd Doctor's outfit do see use from time to time, with the 9th Doctor's getting the most use.
So, Russell, to quote The Face of Boe: "You Are Not Alone"