I have a messy and disorganized home, however I am pretty sure it’s not just me. Do all the members of the household need to take the course?
We recommend for you to start the journey, as this is prominently a personal learning and growth. By doing and working on the decluttering journey, you influence your environment with your new thoughts, set of actions and habits. By osmose, your household will likely gradually change.
Nevertheless, it would be greatly recommended for your environment too, to go through the courses for their own personal learning.