The venue has a fixed chair layout
Some venues let the organizer arrange the chairs as they wish, but others already have fixed seats that correspond exactly to a row and seat number. Such a venue may have a non-standard shape, be divided into sectors, with some seats offering a better view of the stage and others a worse one. If you sell tickets without assigning seats, there will not be enough "good" ones for everyone and you may start collecting negative reviews right in the middle of the event.














