A very common opinion is that people who can't afford reasonable care for pets should not have pets.
I can't fathom choosing to have a pet for my own pleasure only to kill it even though it has a totally treatable problem, just because it costs a few thousand a year.
People have had pets for thousands of years, what ever resources they may have or afford, your "very common opinion" is not so common nor wide spread. People can let nature take its course beyond certain effort. What is reasonable is the question here.. Spending few thousand a year on a pet is not reasonable by any means to most people. Its not fiscally responsible either.
We all have different priorities and we can act on their basis.
If it is your priority go for it but that doesn't mean that is the only way for everyone.
I didn't say it was or that it should be.
I merely said that it is common, especially among people who work with animals, and that I *personally* subscribe to the philosophy for myself that I would not take on a pet that I couldn't support.
I then shared another example of this from my dog breeder mom who doesn't feel responsible breeding dogs without being willing to take them back if they get too sick for people to manage.
The attitude is common. You will very frequently hear people say that if you can't afford a pet you shouldn't have one.
If you are curious about *my* personal belief of how *others* should be behave, you may have noticed that I didn't share one.
I'm personally a harm reduction pragmatist.
If you buy a purebred puppy and kill it because the inconvenience of reasonable care became inconveniently financially burdensome to you, then I would gladly scalp you and wear your scalp as a hat, especially if you immediately go out and buy another fucking puppy.
And that's me being polite about my feelings on the matter.
However, if you rescue dogs who otherwise would be put down, give them a good and loving life, but can't afford expensive treatments, then I send you big hugs when you have to make the heartbreaking decision of putting them down if you don't have a good rescue that will take them and rehome them with people like me.
So my personal feeling is that people putting down animals who need reasonable but expensive treatment can range from anything from my heart breaking for them to homicidal rage.
Hence why I decided not to be a vet, even before I found out about the shit pay.