Tobi studied philosophy, geography, political science and psychology. He is a teacher of ethics/philosophy and geography at a high school and a lecturer for topics of socio-ecological transformation at the Albert Ludwig University of Freiburg. Tobi has been active in nature conservation and environmental education for many years, is a co-initiator of the citizens' initiative "Pedestrian and Bicycle Decision Freiburg" and is an activist for sustainable mobility and socio-ecological transformation.