Why are the artisans to perform for the Duke in A Midsummer Night's Dream?

The artisans, including Bottom and his companions, perform for the Duke in "A Midsummer Night's Dream" as a form of entertainment during Theseus and Hippolyta's wedding celebrations. Their play, "Pyramus and Thisbe," is meant to amuse the wedding guests, but due to their lack of skill, it becomes a source of comedic relief instead.