Malls are de facto social and gathering spaces. Especially for younger people, and the Eaton Centre would be the go to place for all the TMU, U of T, OCADU, GBC, and high schoolers around downtown. Also I can imagine downtown office workers doing a lap around the mall for their lunch time break, and get to window shop, or experiential shop on things they may pick up or eventually buy online. Stores like Indigo, Simons, and the now defunct Hudson's Bay store would be prime places to browse around for ideas and inspiration.