Mentioned in a special about Full House: With the Olsen twins (and I assume others), another advantage of using twins is they could 'change' outfits quickly, by having one twin ready to go when the other came off set. (Dressing little tiny tots and infants can be... difficult if they don't want to cooperate.)
Coming back to where you started is not the same as never leaving. -Terry Pratchett
Mentioned in a special about Full House: With the Olsen twins (and I assume others), another advantage of using twins is they could 'change' outfits quickly, by having one twin ready to go when the other came off set. (Dressing little tiny tots and infants can be... difficult if they don't want to cooperate.)
Coming back to where you started is not the same as never leaving. -Terry Pratchett