Have you ever consider buying an armless sofa? Most people have not. Their argument here is there is no place to prop a pillow or support to lean on.
But the best feature of an armless sofa, they offer more seating than a regular sofa. It allows people to sit on the edge, creating more seating options. It tends to have a more contemporary feel to the design. It’s more of a Scandinavian design.
Like anything else, armless sofas have a place in designs. Would you consider buying an armless sofa???