I’d split the difference between the two opinions here. You have to let juniors make some mistakes. Both so that they can learn, and so you can teach anyone else around (wisdom is learning from the mistakes of others).

We don’t do this with gun safety, because the lesson comes too late and at too high a cost. There may be nobody to teach afterward. So we demand that they act a certain way and come down like a ton of bricks on anyone who fucks around.

But a medical implant isn’t just a personal decision, it’s a transactions with several other commercial enterprises, with financial interests in selling more of them. This will be the next heroin epidemic, or the one after that. It’s predatory. And as someone who has survived predators, it’s people like the three of us who have a moral obligation to watch out for predators while the children play. That’s part of the deal of being a pack/tribal mammal. It’s civilization.