How to explain the sentence "Good men don't have cats, good women don't have dogs"?

Cats and dogs are the most common pets in daily life, and keeping pets is also very particular. Why? Good men don't have cats, and good women don't have dogs? What about this statement?

Why don't we talk about the second half first? Good women don't have dogs? Dogs here refer to male dogs, especially the bigger the dog, the more dangerous it is. During the physiological period, women will secrete a lot of estrogen. If you often look at people in the animal world, you will know that female animals secrete a lot of estrogen during estrus to attract male animals. The male dog's sense of smell is particularly sensitive, and its animal desire will be lured by the estrogen of the female dog.

We can imagine what dangerous things will happen if a woman is alone at home and meets such a male dog, which we dare not imagine. So what? Good women don't have dogs? That's probably what it means.

Say it again? Good men don't have cats? It is said that cats are petite, gentle and lovely, like a gentle little woman. If you compare a man to a male animal, then a cat can't escape from his clutches. After all, we humans are also animals, and we can't escape the induction of estrogen.

So I've heard people say that men who don't have cats are prone to promiscuity, while women who don't have dogs are prone to transsexuality. This sentence actually refers to single men and women, but in reality there are still many people who have cats and dogs, and everyone chooses their favorite pets according to their personal preferences. If I have to explain this sentence, I think it should be like this. Cats are gentle and quiet, and are not suitable for sucking blood.