Because middle-aged and elderly women also get bored, they have already raised their children to adulthood, and they don't have much workload of their own, so it's nice to have a pet to keep them company.
Middle-aged women are usually in their forties and fifties, and at this time, their children usually graduate and go out to work, and the home is usually just her and her husband, and there is not much for them to do, and all of a sudden, the children are not at home, she is not used to it, and having a dog to take care of as if it were a child will allow them to slowly get used to the time when the children are not with them.
And pets can also help to ease their loneliness. Pets are cute little animals that have feelings, and they can repay people in their own unique way for the good they have done for them.
And now a lot of people will have a dog, just like square dancing, once a thing becomes a trend everyone will follow it, so having a pet is partly for this reason. But in the end it's all about treating them sincerely.