I despise cropping, that’s true.
In one wedding album I make, you would find 3 cropped photos maximum.

Of course, cropping is sometimes useful. For example if you want a square picture, or a round one, or star-shaped (oh my God, how would the wedding album look like?).

Or if you screwed up. Of course this is not a really presentable excuse.

Why would I hate cropping?
For starter: Just when you think you only cut a picture slightly, say 10% on each sides, you lost almost 20% of your precious image pixels. You have only 90%x90%=81% left. It’s like you paid for a 10 Megapixel camera but gets only an 8 MP one.
Worse still, cropping tells only one thing: When you shot the pictures, you didn’t know how you want your pictures to be. If you didn’t have time to compose, it still means you didn’t have enough time so you didn’t know how you wanted your pictures to be. And if cropping lets you think “I’ll just do some snap snap now and compose later with cropping”, it’s a pure sin and you might end up in the photography hell (yes, it exists).

You have to compose as you shoot, because e.g. you can’t choose a different angle by cropping. You’ve got to learn “to crop” as you shoot, and with time you will be rewarded with better pictures.