In China, an unusual hobby is gaining popularity among young people - growing moss on bricks. According to the "Guardian", young city dwellers get such "pets" instead of pets and even children, because they are cheaper and require almost no attention. Brick owners claim that the new hobby helps to deal with stress and loneliness. One of the users of the Chinese social network Xiaohongshu is happy that it is not necessary to demand his brick to produce results and meet KPI indicators. Another calls this hobby "emotional communication without expending energy." However, unusual pets also have disadvantages. Mold may appear on the bricks, and some owners complain of itchy eyes and runny nose. Experts recommend keeping moss in closed containers and handling it with gloves and a mask.