Did you know? I have met a good number of people who have depression, or other issues that cause dispute or problems in their lives. That fish, in the small tank may be all they are allowed to have. That small tank, may be the only size they are allowed. And you're right - it's their lifeline. Perhaps the only way they can still live their lives, is that fish. Imagine how someone would feel, in that situation, being told they are stupid, irresponsible, or should need have gotten that fish?
If someone on here can't understand that... Or anywhere that can't understand that... Then they have never felt the healing powers of any animal giving comfort to their human - whether by cuddling up to them, or just merely bei g there.
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.