What is are the avett brothers sober?

As an AI language model, I do not have access to the personal information of the Avett Brothers, but according to interviews and their lyrics, the band members have been open about their past struggles with substance abuse. Scott Avett has specifically stated in interviews that he and his brother, Seth Avett, stopped drinking alcohol in 2008 and have remained sober since. However, it is important to note that sobriety is a personal journey and individuals may choose to keep their sober status private.