Why we don't write on walls of historical monuments?

Writing on the walls of historical monuments is prohibited because it can cause irreparable damage to these irreplaceable structures, which hold significant cultural and historical value. Such actions can deface the original artistry and architecture, detracting from the experience of future generations. Additionally, preserving these sites is essential for educational and tourism purposes, as they provide insight into our shared heritage. Respecting these monuments helps ensure their survival and integrity for years to come.