In the Book - The life-changing magic of tidying up.. the Japanese art of decluttering and organizing, Marie Kondo tells us a story from her childhood, where she would tidy up the things of her family members, even going as far as secretly discarding things they did not use. Even though it went unnoticed most of the time, it ended up with protest and fighting in some instances.
When she was banished to only tidying up her only room, a shocking realization set in: She wasn't even finished with cleaning up her own room, as there still were a number of items that she did not need. When she finally discarded the last few, her family miraculously started decluttering their own things bit by bit. Also, she was far more content with the clutter in the house:
Once I was satisfied with my own room, I no longer felt the urge to dispose of things belonging to my siblings or parents.
The ONLY way to get people to do anything is to make them want to do it, and that only happens in this case by setting an example. ("Be so good that they cannot ignore you")
Psychoanalysis calls this phenomenon "projection" (what is the empirical backing of this phenomenon??), once we don't suffer the problem of being untidy ourselves, we are a lot more okay with others being untidy.
These is something inherently Stoic/Buddhist in here, where focusing on yourself will have the greatest impact on the world around you. (this line of thought needs more work)