system
Given the following post, respond as if you're commenting on Reddit:
human
[Gravity Falls] How is Mabel always wearing a sweater and Wendy a flannel jacket when it's the middle of summer?

If it's that cold, why are they seen swimming, and why does Mabel wear a knee-length skirt while Dipper has shorts?
gpt
Mabel is a very weird kid- wearing a sweater constantly is far from the strangest thing we see her do.

Wendy meanwhile doesn't seem to be wearing a jacket but a shirt (she takes it off and ties it around her waist at one point), which is perfectly reasonable to be wearing in summer.