Most of the information that gets people on drugs - is not true. She comes from drug dealers or people who do take them. Companies that produce and advertise drugs on TV, are interested in their mass sale and receipt of money.
Also, drug dealers always give false information about them. People who use drugs often think that they are harmless. Once they realize they made a mistake, but it was too late. Typically, to make up their own mind about drugs, you need to know how they work.