Australia's Land Services Department (LLS) has installed GPS on 14 cats to track their movements. It was found that most cats had a range of movement around 3 kilometers.
But there are also cats who will travel all night long just to stroll around the deep mountains and forests more than ten kilometers away. At night, I climbed 4 mountains, crossed many small rivers and ran into the deep mountains, and appeared in the neighbor's yard the next day...
Even the cat with a small range of movement should visit at least 5 or 6 neighbors, with an movable edge path of more than 1.5 kilometers.
So, if there is no area or new fun for cats to explore at home, then 300 square meters is a "cage" in the eyes of cats. The standard for cat low-income households is 2 square meters... The American Association for the Prevention of Cruelty of Animals (SPCA) proposes that each cat should be provided with at least 18 square feet (1.67 square meters) of living space.
In other words, when ≤1.67, even if the environment is sufficient, the cat is prone to stress and depression; but when ≥1.67, the cat is happy or not and whether it is happy or not depends on whether the environment is sufficient.
And no matter how small the apartment is, it is still larger than 1.67 square meters. Then whether you can "go from a low-income security to a well-off society" depends on "soft decoration".