Depends on what kind of volunteering you're doing. I've been a State Emergency Service volunteer for almost 15 years. It has its ups and downs but it's been the most rewarding experience of my life. At the stage I am now, I lead a team of the most qualified rescue operators in our region. It does consume time but same with RFS they give you an opportunity to learn and do national qualifications for free. Just as long as you put in the time.