The Newfoundland is a giant working dog originally from North America, first used for hauling goods and rescuing people from water. That background determines that the Newfoundland is not really suited to modern city life. For most people living in cities, it is not an ideal family pet. Although it has an enormous body, the Newfoundland has a very gentle temperament and almost no attack tendency.
The breed comes from the eastern coast of Canada. Strictly speaking, it is not an extremely ancient breed, but rather a dog developed from the crossing of Labrador-type dogs with larger working dogs. In practical terms, there are three main reasons why it is not well suited to household life in most places.

The Newfoundland Does Not Tolerate Heat
The Newfoundland has very high environmental demands during growth. It is a cold-tolerant but heat-intolerant dog, while in most areas of China the summer temperatures are extremely high. This makes ownership difficult. If people insist on keeping such a dog, then in summer it may barely be able to go outside at all and may have to remain indoors in air-conditioning most of the time, which can still have a serious impact on health and may shorten its lifespan.

The Newfoundland Needs a Lot of Space
Most modern households live in relatively enclosed apartment communities, where a dog may only get a short walk after dinner. That kind of life is not suitable for a Newfoundland. This breed is a guardian and rescue dog that is used to a great deal of work and exercise every day. On top of that, it is physically huge. If it is kept indoors all day for too long, it may easily become depressed.
The Newfoundland Has High Feeding Demands
The Newfoundland's body type is somewhat similar to that of the Great Pyrenees, but its food intake is often even larger. Its feeding style is also different from that of an ordinary pet dog. It is not really ideal to feed it only standard dog kibble every day. These dogs generally require fresh meat, vegetables, and balanced nutrition at every meal.

If someone truly wants to keep one, then food consumption alone may equal that of an average family of three. Very few households are willing to spend that much just to feed one dog. On top of that, the dog's body is so large that an ordinary two-bedroom or three-bedroom apartment may not have enough space to house it comfortably.
Many people are attracted by the Newfoundland's giant, powerful appearance and soft, gentle personality and dream of having one of their own. But the breed's own traits make it poorly suited to ordinary home life. Forcing the issue not only harms the dog's development, but also creates a great burden for the owner.