The German language needs to do away with gendered nouns then entirely. Why is a wig a feminine word? Why is a car neutral and why is a TV set masculine???
Why is girl neutral?
Mostly because German noun genders aren’t really intended to imply a real world gender, but are simply used to determine which set of conjugation words apply.
(Also other Germanic languages which use the same nouns as German change the genders often. Der tsimmer , das Zimmer, etc. It’s not like you cross a border and the room suddenly had a sex change)