Sure, you don't need them, but why re-invent the wheel? At least UUIDs are not some one-off function in a helpers file that may need to be amended many times be

Sure, you don't need them, but why re-invent the wheel? At least UUIDs are not some one-off function in a helpers file that may need to be amended many times before you get it right, but are backed by a specification, are time-sortable, etc.