In facial expressions, having a butt and chin is a blessing. In Asia, many people think that having a chin with this shape can bring good luck and fortune to each other. In China, it is said that related books have mentioned that people with such chins have amazing creativity, and as long as someone cultivates, guides and digs them, their talents and characteristics will burst out.
There are many people with this kind of chin in western countries, especially white people. However, in Asian countries, it is rare, so it feels a bit like "things are rare." People with this kind of chin are even rarer than those with dimples, and it is generally hard to see, so many Asians think that people with this kind of chin are caused by chin trauma, haha.