High school athletes should be drug tested by their schools. If there are students that are willing to turn to far more dangerous substances because they are less detectable, it is likely that they already have problems with drug use with more moderate drugs like marijuana.
The randomness of high school drug testing can still catch and get these students the help, treatment, and intervention they need.
However, choosing not to drug-test at all does not help to accomplish that goal.
Moreover, instead of turning to more dangerous drugs or substances, many students may choose to forgo drugs altogether, afraid of punishment. Drug testing high school athletes is a way to potentially reduce drug use in schools and quickly intervene on behalf of students who need help.