I am not sure what you mean by being weak. Weak of mind? Of spirit? Of stomach?
I have essentially been putting forth what I deem reasonable situations when cropping may improve a photograph. Either by revisiting a print or negative to improve the original composition (which may have been fine to begin with), or to remove unwanted and unforeseen or unpreventable objects that are captured at the time of tripping the shutter. There can also be the situation where you don't have a long enough lens or cannot gain enough height to eliminate an immovable foreground object (a fence, a highway, a river, for example). Cropping becomes necessary unless one forgoes the photo altogether.
On another note, I prefer square compositions, but not all my cameras are square format. So I will find myself shooting 6x7 or even 35mm, knowing I will end up cropping to a square. I have also lately been experimenting with 6x17 format panoramas, but I don't have a 6x17 camera. So I shoot composing for those proportions, purposely cropping out 50% or so if the image.
https://pdekoninck.com/Interior-Landscapes