ye, and if you don’t like the negative connotations of “lazy,” substitute it with “attentive to making cost effective decisions.”
if it costs more, in time or in money, for an individual to properly dispose of something than the negative consequences of just chucking it in a river, the latter option will be chosen. this hilights the importance of community organization to set up a means for disposal, to make it accessible, and to make it known. by working together both the labor cost of disposal and the externality cost of environmental damage can be limited beyond what any individual could do.