There are a number of contemporary Pagans who choose to participate in interfaith work, while others do not for various reasons. It's something I'd like to get involved in more on the local level - I see some of my role on RF as being interfaith work on some level. A major reason many Pagans do this work is because most people are pretty ignorant about Pagan religions. You hear stories from people doing interfaith work as Pagans about being the only non-Abrahamic representative at such meetings, and often the people at these meetings have never even met a Pagan before. While we are a religious minority in my country, we're not that small - odds are you've met a Pagan and didn't know it, as many of us aren't that open about our practices (both because we're not preachy religions and because we're sometimes discriminated against as a minority group). Speaking of discrimination, interfaith work plays an important role in combating that by dispelling misconceptions and facilitating valuing diversity and pluralism.