This statement is not true as the purpose of the Initiating a Project process. The correct purpose of this process is to ensure that there are solid foundations for the project, usually after the project has already been decided as worthwhile and approved for initiation. The decision to initiate a project is typically made before the Initiating a Project process. References: PRINCE2 Foundation official documentation and study materials.

A Work Breakdown Structure (WBS) is most useful when managing projects with multiple work packages that involve a combination of internal and external resources. The WBS helps in organizing and defining the total scope of the project by breaking down the project deliverables into smaller, more manageable components, facilitating better planning, allocation, and control of resources.
(PRINCE2 7 Foundation Handbook, AXELOS)

The purpose of the 'Starting up a Project' process is primarily to appoint people to the major roles within the project management team. This process ensures that the right people are in place with clear responsibilities before the project kicks off, facilitating effective planning and execution from the outset. References:
PRINCE2 7 Foundation manual and the 'Starting up a Project' process documentation.

In the PRINCE2 framework, the team manager is the role primarily responsible for the welfare, including the safety and well-being, of the project team. This role involves managing the team environment and ensuring that team members are supported throughout the project's lifecycle.References: PRINCE2 7 Foundation guide and resources detailing project roles and responsibilities.