Should animals be trained to help people

Should animals be trained to help people?

Nowadays, many animals are trained to help people. Such as guide dogs and various kinds of pets. To the phenomenon, people have different points.

Someone think we should respect other animals' nature rather than train them to be our slave. Although trained animals help us a lot, we shouldn't train them. They belong to nature and have themselves life. We have no right to disturb them. If so, animals will lose themselves bit by bit as they are gradually accustomed to obeying humans' instructions and the whole nature is possibly going to lack its original vigor and energy. Each of creatures that exist in world is a unique individual, they have their right. We are supposed to live in harmony with animals not look upon them as our belongings regardless of their feeling.

On the other hand, others hold the opposite point that we are natural selection and the supreme ruler, so more natural, the animals should be tamed by the human and help humans? Firstly, some animals have a superior ability to do a certain job and human can teach animals to perform extraordinary tasks. For example, dogs are trained to track down prey by hunters and serve for deformed people. Secondly, we can train animals to be our friends even families. You won't feel lonely with you "friends or families " when you are alone. And animals sometimes are more loyal than people, the pets will accompany you forever. Thirdly, they think animals are also glad to be trained by people. Because people will offer the animals more comfortable condition to live, such as warm family and more food.

I think every creature have themselves life-style, we shouldn't insert into other animals' life as we don't want others to disturb us. And as far as I see, most trained animals have a miserable end. For example, many people discard their pet dogs or cats, just because the pets are silk or they don't have a good-looking. So I think animals shouldn't be trained to help people.