Final answer:
Role sharing not present in former generations includes collaborative workspaces, which challenge individualistic office settings; online communal parenting forums that bring together diverse parental experiences.
Step-by-step explanation:
The examples of role sharing that were not a part of the former generation, as indicated by the student's options, are as follows: Collaborative workspaces in the professional realm, which introduce a different dynamic compared to traditional, isolated office spaces; online communal parenting forums, which harness the collective wisdom of various parents irrespective of geography; and the parental responsibilities between genders, which have seen a more fluid distribution of roles that disrupt the traditional division of labor. The evolution of these roles reflects societal changes and the transcendence of rigid gender-based expectations.
Traditionally, the division of labor was clearer, with men assuming instrumental roles involving work outside for financial support, while women were expected to take expressive roles within the home. However, as societal norms evolve, we observe that these roles are no longer as strictly defined, allowing for a more balanced cooperation between genders. Additionally, workspaces and forums online allow for a more democratic and shared approach to both professional and parenting roles, offering an alternative to the historical norms of the domestic system where home and workplace were previously intertwined.