because they "do not have emotions" they "cannot do math" they "have nothing to give back". all quoted from people who scoffed at my fish keeping. They can turn and flush it down the toilet because it doesn't yelp, cry out in pain, they cannot cuddle, they "don't love you back". There are also very many people who see ANY animal as disposable. "I'm tired of this pony I want another." "I don't like this dog he bit me (after pulling his tail) I don't want him." It's just the sad truth.
Well, as for me my bettas do tricks. They are smart enough to comprehend "do this get food". Spartan, you could put your hand in his tank and he'd come over and sit in your hand. and when people who own fish actually see the suffering the fish goes through when they have dropsy, or ich, or cancer... and compare it to "how would I feel if I was itchy, bloated, dying?" they give the fish a reason, a purpose, a name, a life.
Breed for the breed, not for the money; the words any REAL breeder would understand.
You must know nothing in order to know all, for all is nothing and nothing is for all.