あの世界、多種多様な体格が溢れてるからこういったドアがありそうなんだけど実際どうなんだろう。
小さい人用がペットドアみたいになっちゃうけど。

In that world, there are so many different physiques that it seems like there would be a door like this, but I wonder what it would actually be like.
The one for small people ends up looking like a pet door.