Why is there so much spanking children in anime such as dragon ball z and shin Chan?

Spanking has been a common discipline method in Japan for centuries and was traditionally performed to encourage a child's sense of shame about misbehaving, rather than inflicting pain. Anime often reflects contemporary cultural practices, and therefore often includes scenes where characters, both adults and children, get spanked for being mischievous or misbehaving. However, the portrayal of spanking in this context typically aims to show it as harmless rather than hurtful—it's usually seen as something funny that shows children being playful with adults or, alternatively, being disciplined so they behave properly