The idea of drug dealers trying to addict kids to drugs has been popular since at least the 80s, and I’ve never seen a single credible report of it happening. It just doesn’t even make sense. Addiction doesn’t happen instantly, and even if it did, the kids wouldn’t understand the cravings they were having, wouldn’t know what to do about it, and wouldn’t have reliable access to money to pay a dealer.
It also doesn’t make sense from a dealer’s protective. A dealer would much rather risk jail if they get caught than risk being lynched by a mob of angry parents.