My wife thinks it's silly, but I always practice catch and release. She can't see the point of fishing, catching fish, ad then throwing everything back. But, she's not into fishing, so she just doesn't get it, and that's fine.
I've gone catfishing and have kept a few cats.
The one fish that I do recall keeping was the largest fish I ever caught. It was a 38 inch Pike, and he was delicious
Of course Ive been deep sea fishing a few times, and keep everything.