Do people with size 2 actually exist?

Womens Sizes are completely arbitrary and it's why every chain has there own size chart. so what was a size 2 in one shop could be an 8 in another. This is because shops tailor themselves to certain sized people and manipulate the sizes to get the maximum profit based on what numbers would make them feel the best about themselves. Not to mention that Size numbers have changed drastically over the last 50 years because of this.

Also like everyone there's almost always someone fatter or thinner because of builds. Not to mention being shorter and essentially the same amount of thickness as a taller person will cause you to wear smaller clothes. Because you're overall Size is smaller even if your ratios are the same.

Etc etc etc

Yes. My daughter is a size 0. Lots of Asians are small boned, but they look proportionally okay, because they are short (my daughter is 5'2"). There is even a 00 size.

Yes. They actually exist. So does a size zero.

those really tiny pixie girls that look cute in anything

I know 2 ppl with size 0 and 2