Remembering Animals on Remembrance Day

Why isn’t this a horse rather than a dog? Is this really about animals or something for self-indulgent pet owners? I’m sure there were far more horses used in wars than dogs.

If it is for the pets… why are they always dogs?

I hope everyone wearing a purple poppy is also wearing at least one red poppy, for the humans lost to the wars.

Source: THE Purple Poppy Lapel PIN Remembering OUR Animals ON Remembrance DAY NEW | eBay