Why would you want to turn your laptop screen upside down?

Or
3

I discovered the extremely practical function for rotating the screen today by accidentally using this function. Two wrong clicks, whoops, the screen was upside down. Why should you turn the screen 90 ° seems plausible to me, for example for reading longer documents, but why should someone turn the screen 180 °, i.e. Upside down? In the case of a laptop, the keyboard would then be the wrong way round and its function would therefore no longer exist and if the screen (e.g. On a laptop) does not have a touch function… Why then?
We're sitting here at 10. In a class and none of us can explain it to us, even though there are budding programmers. Maybe we're just too lost, or isolation has destroyed our brains.

Gu

Imagine the monitor is not standing but hanging e.g. On the ceiling and must be installed so that the image would be upside down by default, then it makes perfect sense that the display can be rotated by 180 degrees.

Or

Ahja, that makes sense, of course.

hi

It is an operating system function. The same operating system (probably Windows) runs on other devices, e.g. On tablets whose sensor announces to the operating system, where is recently down because the user has turned the tablet around.

Removing such a function just because your default case is a laptop would be more time-consuming than allowing you to rotate your image senselessly.