Why did catal huyuk houses have only rooftop entries?

Çatalhöyük houses had rooftop entries primarily for safety and security. This design helped protect inhabitants from potential intruders and wild animals, as well as provided a means to escape in case of danger. Additionally, the rooftops facilitated space-saving construction in the densely packed community and allowed for better ventilation and light inside the homes. Accessing homes through the roof also encouraged communal living and interaction among neighbors.