In some states, medical marijuana is legal. this means that people who need to take marijuana because of a medical condition may take it only with approval from the doctor. however, officers still advise these people not to drive while under the influence. what is the main reason for this? they would become dangerous to themselves and other people. they would not able to read and follow street signs. they would not be capable of staying in only one lane. they would become dangerous to wildlife that may be present.

Because it can still cause harm or wrecks even though they are perscribed with it.

Explanation:

They would become dangerous to themselves and other people.

Explanation:

Although marijuana has been approved for medical use, its affects are still not completely understood.  It is well-documented that the concentrations of various chemicals (including THC) in marijuana may vary from portion to portion.  Therefore, sometimes the results on individuals may be unpredictable.  It's psychoactive nature may interfere with judgement.

walk away. if anything happens, call the police.