I hope you were just kidding
For what it's worth, I've seen other people wearing shorts at WDW in the 50's, (and they are usually male and usually "Yankees"), so it's not just me! My point was, I'll be the lone Southerner joining them!
Someone told me I must have "thick blood", but I don't know, I just don't FEEL affected by the cold like most people seem to. The "frozen foods" section in the grocery feels like PARADISE to me! But again, I can't tolerate heat like most can. If it's as low as the 80's and I'm outdoors in the parks for any length of time I have to keep pouring complimentary ice water down my shirt every half hour or so, or else I feel like I'm going to suffocate or collapse!
Whenever I'm in St. Louis I go to the St. Louis Zoo, and they have one of the only Penguin/Puffin exhibits in the country where the air temperature for the birds is the same as it is for the guests, because the glass doesn't go all the way to the ceiling. Which means it is in the
LOW 40's in there! (but with no wind chill). I am usually wearing shorts and a t-shirt at the zoo, so that's what I have on in the exhibit. Yet the temp doesn't bother me; I stayed in there enjoying the penguins for at least a half hour and didn't feel uncomfortable, although the employees all had long pants and light jackets on, and other guests looked cold.
One thing is, if I'm wearing shorts and a t-shirt at a park and it's in the 50's but with no wind chill, this might seem "extreme", but you expend energy everytime you walk from one attraction to the next, and this makes your body heat go up. And If I walk briskly, jog, or run, it can actually feel HOT when it's in the 50s, even with shorts!
And another thing too is, MK, Epcot, and Studios have a much higher percentage of indoor attractions than most parks. And if I wear long pants, I am HOT whenever I go into any of the buildings, shops, etc, since they don't keep them as cool as I am used to at my house. Sometimes in the winter, some buildings even have the stupid heaters on, and you just feel that humid stuffiness suffocating you, and your legs wish you were wearing shorts to keep them cool!
So, my first "line of defense" for nights expected to be in the low 50's/upper 40's, before going to the long pants, is to wear a light sweater over the T-shirt. The kind with buttons that are easy to take off whenever I enter a building, so I won't be hot inside. I stash it in a park locker during the day so I won't be hot when the sun is out, and IF I start to feel a little chilly even for my standards at night, and I know I'm going to be sitting still outside for awhile (such as Fantastmic!) I have the option of using it.
I just like being comfortably cool at all times (like in a cave, which are usually around 60), and since I keep my house very cool (no warmer than 68), I think this also makes it much easier for me to deal with the cold than most people. Sometimes I may make an error of judgement and don't use the sweater when I could have, but I'd rather err on the cool side, because I am more comfortable being a bit more cool than my ideal, than I am being even just the slightest bit hot or "warm".
My motto is "The colder, the better!"
Of course, I don't live in the north or have to shovel snow, and it RARELY drops below 32 in New Orleans or Florida. So I have a romanticized view of winter, since any time I can spend in the 40's, 50's, and 60's provides a welcome relief from the rest of the year!
PS. Another example is when I went to the Mall of America's amusement park in Minneapolis, (actually, Bloomington), it was in the low 40's, but I got a parking spot in the garage just about 20 feet from one of the entrance doors, so I wore shorts and a t-shirt inside the mall. People inside were all bundled up with coats/jackets and long pants in a 72 degree indoor environment! But since I spent the whole day there at the park and exploring the huge mall, I felt VERY comfortable. I would have been MISERABLE in there in long pants and/or a jacket/sweater, so why wear them - to be uncomfortable all day just because I would have been too much of a pansy to deal with 40 degrees for the few seconds it took to walk from car to mall entrance!