I really don't get this concern about negative response. I've never had anything other than admiring comments about my Irvin. Even the 'Where's your Spitfire?' jokes are usually followed by '...and it looks great'. It's like anything, if you're overly self-conscious about what your wearing, people pick up on it. Just wear it, the more you wear it, the more it becomes 'yours' and the better it'll look.
"The Greycar RAF Sheepskin Flying Jacket is a faithful reproduction of unparalleled quality"
It could be a fine jacket, but "faithful reproduction" Irvin with handwarmer pockets? Really?
The same. I just bought another B3, although it's much slimmer and more B6 in cut and thickness, hoping I could get more fashion use out of it. But I wear my Aero B3 all the time. It's perfect in short bursts for walking the dogs at night, running the kids to school early morning. It's perfect for Los Angeles weather because usually nights and mornings are significantly colder. It could be 40 F early morning and 85 F midday. So it's perfect to throw over a tshirt to give you warmth, and then as the day goes on, you take it off and are ready for the warmer temps without having to shed layers. Same for rolling out of bed. No need to layer 8 things to let the dogs out.
I definitely wouldn't want to be stuck on a bus or in a subway in one that's for sure. Or be wearing on some grueling hike. But open air, 1-2 hour stretches, it's awesome. In fact, as far as "number" of wears, it's probably my most worn jacket since I'll use it every night from Nov to end of Feb to walk the dogs.
And I also agree about other winter jackets. I've got a couple Schott flight jackets stuffed with some kind of insulation and I heat up way more in those than I do my B3.
edit: and as far as what people think about you wearing one or how "funny" you look. Oh gosh. Was at the mall for the first time in years last week. I'd say 85% of people dress like slobs. Like actual pajama bottoms, poorly fitting clothing, etc. etc.