The thing many parents get wrong about education is to think that the kid learns what you tell it. You tell the kid X is dangerous, so now the kid learned X is dangerous. That is not how it works at all. What the kid learns is that it can't be trusted to judge danger itself, since always when it tries to do something itself found okay a panicked adult will tell it this was dangerous.

The lesson isn't the meaning of the words you say to your kids, the lesson is how what you say relates to them and what they observe you doing. And this isn't just about this example of traching them to make a sound judgement, this can be expanded to nearly every educational problem one could have with their kid.

E.g. extremely commonly you will find kids who develop bad behavior despite their parents "telling them not to" will not only witness the bad behavior by their parents, but will be ignored, ridiculed, disrespected or mistrusted whenever they do in fact behave well.

And it all boils down to the simple notion that you can't just tell your kid a thing and expect that to be the lesson.