Some people see negative stigmata with medication and will try to find alternate methods first, which there is nothing wrong with too. IANAD (I Am Not A Doctor)
That being said, as I mention in another comment, there are valid reasons to be cautious with ADHD medication. And as for the stigma, I am very careful about who I talk to about my ADHD in real life. A few of my coworkers know, my boss knows, and a couple of my friends and family members. I discovered very quickly that ADHD itself has a pretty bad stigma, let alone the medication. Everyone thinks you just want to get high. So, I just don't talk about it anymore, even though I so often want to explain to someone that the reason I did something rude (like interrupt them 5 times in 10 minutes) is because I'm ADHD and my medication has worn off, ha.