If you leave a broken window unattended, other windows will start to crack.
If a broken window is left unrepaired, other windows will start to crack.
This is called the “broken windows theory”.
Why does this happen?
The presence of broken windows has many negative effects on you.
Broken windows may discourage you from cleaning.
In addition, your roommate may clutter your room.
Only one trash on the street collects more trash.
A single broken window can lead to a violent incident.
Not just windows, this applies to many everyday situations.
Don’t leave small harmful effects just because they are small.
– Britannica: broken windows theory