Why do Iranians drink so much tea?

Can you elaborate on the cultural and historical factors that contribute to the widespread consumption of tea in Iran? What are the traditional rituals and customs surrounding tea drinking in Iranian households and social gatherings? How does tea play a role in Iranian daily life and society, and what are some of the unique varieties and flavors of tea that are particularly popular among Iranians? Additionally, are there any economic or political factors that have influenced the popularity of tea in Iran?