Figure 2 shows that there are also large
differences between drug using and nonusing youth in their
perceptions of whether a friend would try to stop them from using
drugs. Nondrug users are much more likely to have friends who would
stop them from using; for all drugs and grade levels, around 80 percent
reported that they had friends who would try to stop use of drugs
either "some" or "a lot." In contrast, less than one-third of heavy
users reported having friends who would try to stop marijuana use.