Thoughts on wearing clothes that include symbols of drug usage?

Hello, I know this is a little bit of a random question. However, I was wondering what your honest opinion is about not doing drugs but wearing shirts or accessories that have drug symbols on them. I am asking because I have a friend that often wears a shirt with huge mushrooms all over. In my opinion, this shirt sort of promotes drug usage. Or makes it kind of a light matter. To be clear, she seems to be a very devout christian. And very serious in her relationship with god. So I was just confused that to her this did not seem like an issue to her. I personally wouldn't want to wear the shirt. Because to me it seems like it promotes drug usage which can be bad for our mental health and physical health. However, I am not sure if it is right or wrong or not for a Christian to wear these types of shirts. What are your thoughts? Am I off base about this?

Just to add more clarification: I did actually ask her about the shirt. I did ask her what it meant. And I didn't tell her my opinion about it or if it was right or wrong. I just asked her what it meant. She said that yes it is supposed to mean mushrooms as in magic mushrooms. I didn't tell her my opinion about drug usage. She has done shrooms once before and has quit smoking pot. And seems to have given her life back to God in the last few years. Which is why I was confused when she wore the shirt because if seems to promote a lifestyle that she is trying to get over.