Young Chinese keep bricks instead of pets: they collect them on the street and spray them with water so that moss grows on the surface. The hashtag about "raising bricks" received more than 5 million views on Weibo. Chinese Zoomers call this "friendship with zero energy": such a "pet" gives the feeling of a friend without requiring money or commitments. With youth unemployment reaching nearly 20%, whites have become a cheap alternative to children, cats and dogs. It's cool, the main thing is that you don't need a lot of care, it's a cheap version of a terrarium.