fiction based on imagined future scientific or technological advances and major social or environmental changes, frequently portraying space or time travel and life on other planets.
Wiglaf is presented as a model of loyalty. He understands what the anglo-saxon code is like and believes in Beowulf without any doubt. He is brave and willing to help Beowulf and criticizes the other warriors for not behaving the same. This is why he is later appointed as Beowulf's heir.
I would say they should once they are 18 because their brain should be developed enough to know right from wrong. Unless they have a mental disability.