I don't count people with ADHD taking Adderall as prescribed as Adderall addicts, the same way I don't count people who are on prescription morphine to manage pain, and are careful about their usage, opiate addicts.

The fact is that people use ADHD medications recreationally, or off-label to increase their focus e.g. in preparation for exams, in knowledge work, etc. And those people are at high risk of developing addiction.