By Charlotta Martinus
Charlotta Martinus is the founder of Teen Yoga (teenyoga.co.uk)
In 1998, when I started yoga, the only yoga classes around were run by passionate yogis, some trained, others simply students who had been drawn to share their knowledge and practice. The only money you earnt was from whatever was left over after paying for the village hall. Many teachers had other full time or part time work and yoga was more of a community service than a career.