Disappointing as it is that Michelle won't be around with sisters D.J. and Stephanie on Fuller House, the Olsen twins have solid reasons for not joining the cast. Twelve years working away from cameras on the fashion scene is a big departure from acting full-time as child stars, and we can't blame Ashley for not wanting to jump back into such a famous role. Besides, timing can't be helped. The stars may have aligned to bring the rest of the cast back to Los Angeles for Fuller House, but the New York City-based Olsen twins have full plates on the fashion and business front.