I'm new to this community (like 2 days new). Apologies in advance for the long reply. This story makes me happy for two very different reasons.
1. I'm happy to see the group I've just joined is doing it for the same reason I am. I've been here literally two days and the amount of support and love this group puts out into the world is incredible (I saw a post collecting for a young boy at Christmas who had/ has leukiemia. Needless to say keep up the great work everyone!!!).
2. About 12 or so years ago I went to my very first con as a young adult. I had this exact same experience as the girl in the wheelchair and I can't say how much it meant to me. Now I'm here, trying to give back too.
Here is my story...
I had just made friends with a fellow group of nerds in my first year of university. I somehow made it 18 years on this planet without ever hearing about con-culture. My new friends... in their infinite wisdom... decide it is time for me to experience this community. I've been a comic book nerd since I could watch TV. My earliest memories are of the 90's X-Men and Spiderman on Saturday morning cartoons.
Away to Toronto Fan Expo we go. We arrive, I was expecting a bunch of old smelly dudes talking about their vintage comics and being dismissive of the young folks (yeah, sorry, I was so very wrong). I was expecting it to be stale and boring for some stupid reason. I had NO idea that cosplay existed. If you told me that some people believe that Halloween isn't just a day it is a lifestyle, well I would have said that is a beautiful lie.
The whole ride there we didn't see anyone in cosplay (which I now realize how werid that is now, as cosplayers migrate is one of my favourite things about getting there now. But when we walk in the venue... suddenly there are all of these people leaping off of the silver screen and into my life. I fanboyed immediately, to the point that my friends had to console me because they thought I was having a panic attack. I've never reacted like that before in my life. I knew I found a missing piece in my life.
As we walk through the con, there were of course the cosplays that stood out as "my childhood". Other experiences were had, I had the pleasure of meeting Adam West (there was no line, so we just went up and had a 15 minute chat with him). But the cosplay community was what stood out to me. Regardless of who we saw or asked for photos, everyone (with a few random exceptions) was exceptionally nice, posed for photos, and welcomed us with open arms.
Like OP said, what we do isn't just about dressing up... it is about community building, it is about bringing unimaginable worlds to peoples lives and letting people know that they aren't alone in this world.
Below is a picture of me at my first con just a few moments after learning about cosplay (a guy dressed as Cap let me hold his very heavy metal shield). Beside it is me in my first ever cosplay at this past year's Toronto FanExpo. I made a custom Batman suit out of EVA fiberglass and carbon fiber (the carbon fiber doesn't show up great in the pictures but in person it is a show stopper).
So from the new guy to all the vets, thanks so much for being so welcoming... thanks for doing what you all do! I look forward to becoming a member of the squad.