This is also the strategy that we employ-- that this is just like wearing a bicycle helmet or seatbelt, I mean, and that we'll suspend privileges over it (which is one of the few categories of infractions like that).
But also recognizing that parenting teens requires a different toolbox... and that just "you're grounded for pulling this stunt, and it had better not happen again" isn't enough-- because if that is the further that it goes, then the problem just gets translated into realms where you DO NOT have control over what they do and when and how.
E.g.-- college.
In other words, you have to get through to them about the WHY of some absolutes which are about basic safety if they are going to continue doing them once they turn 18/leave home.
Unfortunately, this is where a parent with a fairly lax approach can do a ton of damage in the long term. Which is why I recommend pulling in an allergist or research papers which recommend the "two epis" approach for medical reasons (and they do).