Design patents are only granted if the design is novel and not obvious for all items. Utility patent must be novel, non-obvious, and be useful (legal defined term).
Both has requirements that must be fulfilled. non-novel and obvious design can not, should not, would not if the patent system worked, be granted as a design patent.
Both has requirements that must be fulfilled. non-novel and obvious design can not, should not, would not if the patent system worked, be granted as a design patent.