Right now in our culture we generally consider having less to mean not having enough. With being poor, usually. We also think having less is not a voluntary act. If someone has less it is because she or he is somehow less than x (successful, motivated, lucky, choose your own hackneyed illogic).
Having less can actually be the result of wanting less. Wanting and having less can be a voluntary act.
Ironically, wanting less is viewed through our cultural lens in much the same way as having less. Someone who wants less must be less x (ambitious, motivated, American, etc.).
Having less and wanting less does not ipso facto indicate a deficiency. It may well indicate a more balanced philosophical approach, one that is virtually absent from our current cultural vocabulary.
Do you want less than others? Do you have less as a result of a conscious choice? What do you have less of and why? What are the potential consequences of having or wanting less?