What's the point of a lockable storage cabinet if the key lives in the door?

How to say “What's the point of a lockable storage cabinet if the key lives in the door?” in Japanese

In Japanese

鍵付(かぎつ)きの収納(しゅうのう)キャビネットって言(い)っても、鍵(かぎ)が扉(とびら)に挿(さ)しっぱなしじゃ意味(いみ)なくない？

Kagitsuki no shūnōkyabinetto tte itte mo, kagi ga tobira ni sashippanashi ja imi nakunai?

What's the point of a lockable storage cabinet if the key lives in the door? in other languages