When improvising, especially not well trained improvisation, we tend to fall back to familiar and comforting material.
As our brain is nothing more then connections between neurons, the familiar things are common pathways already existing in the brain and thus the most easily recalled.
Reference
E. Schea, M. (2018). Sly flourish’s return of the lazy dungeon master. Sly flourish shop
Highlights or timestamps
Return of the Lazy Dungeon Master Highlights
- When we try to improvise locations we’re likely to fall back on stereotypical castles, familiar dungeons and the same old pair of huge statues with their hands out flanking the river.
— ^5373ec from Return of the Lazy Dungeon Master highlights