I dont think people should have animals unless they are working animals (and well looked after).
I don't agree with this; well cared for companion animals are easily as happy if not happier than working animals. If you choose a species and breed that is well suited as a pet and that you are capable of providing good care to, then pets and owners can have wonderful mutually beneficial relationships. For a canine companion breed, being with their human(s) is their job.
I've worked with older adult mental health services and in a vets at different points in my life, and seen some really beneficial relationships where a pet has been an isolated older person's reason to keep going, & in return that pet has really been well cared for & enjoyed their warm lap and doting companion.
What do you think happens to working animals at the end of their "useful" life? Some are lucky and kept well in retirement but many aren't so lucky unfortunately. Dogs from working lines do need a job but this need can be met through a dog sport or other activity too.
I'm not keen on the keeping of exotic species as they are some of the hardest to provide for, but guinea pigs in a large cage, with warmth, food and shelter, are usually very happy little creatures. I have two (rescues) and they are currently zooming around their enclosure as I just topped up their big hay pile and added some forage. They'll be even happier when I chop up a pepper for them later.
My rabbits (also rescues) live in a big enclosure, I'd love to let them run free but they'd be eaten by a fox within hours here. I popped out to see them a little while ago; they are snuggled up together grooming each other. They have safety, food, water, tunnels, protection from disease, and a dig box to enable them to enact natural behaviour.