The reason why Corgis dock their tails is due to custom

The custom of docking their tails comes from the ancestors of Corgis. Corgis used to work as hunting dogs and could always be seen when grazing cattle. It can be seen running around, but because it is active in the wild, it is quite naughty in character. It likes to sniff and bite under the feet of cattle and sheep, causing chaos in the pace of cattle and sheep, and it is easy to step on the tail of a Corgi. In order to save this trouble, people cut off the tails of Corgis.

Disadvantages of docking Corgi’s tail

But after cutting Corgi’s tail short, you won’t be able to see the dog’s emotions expressed through its tail. After all, Corgi’s tail is docked. The dog has lost its emotional expressive device, and you can no longer see it wagging its tail affectionately at you.
The genitals are a particularly vulnerable place for all animals, and the tail serves to protect the already fragile abdomen and crotch. It can also avoid some anal infection problems caused by squatting in unclean places.
In modern Europe, most countries have introduced animal protection laws. It is illegal for a dog like a Corgi to have its tail removed at home. Most of us who see corgis with docked tails are mostly raised in China. Like overseas, unless the dog is born with a docked tail, someone will take you to court, which will also cause a crime.