Dogs have been domesticated for like 5x as long as horses, they never stopped being man's best friend
As someone who has had to take care of both, I much prefer the dog. One, they're more cuddle loving, and two... they shit less. Way less.
The invention of the automobile was probably the best thing that ever happened to horses! They went from slaves to pampered darlings
Dogs have been domesticated for like 5x as long as horses, they never stopped being man's best friend