Awareness of the individual's harmful impact on the environment has been rising in recent years. One example of harmful impact is the littering of public spaces -- which is significantly hazardous to ecosystems. A possible solution to the problem is a shift of emphasis. Rather than reinforcing external responsibility embodied in bins, cleaning staff, inspectors and authorities, emphasis should be placed on fostering the personal responsibility of citizens to collect the garbage they produce and transport it for safe, organized disposal. This approach is at the heart of a new initiative -- "Take the Garbage with You." This qualitative study examines how adults and adolescents perceive environmental responsibility -- in general and, more specifically, regarding the littering of public spaces. We interviewed 24 participants divided into four groups: environmentally inclined adults, indifferent adults, environmentally inclined teens, and indifferent teens. Both inclined and indifferent, adults and teens alike, believe that others litter because there is someone in charge of cleaning and that the greater a person's sense of social belonging, the greater the efforts they take to protect the environment. Our findings also show that only environmentally inclined adults believe that Take the Garbage with You stands a good chance to succeed.