This is straight up seven up the best, because yes, exactly. Chesterton had a great line - fairytales are more than true, not because they tell us that dragons are real, but because they tell us that dragons can be beaten. And I think for kids, that’s waaaaay more important than hearing “there’s no such thing as monsters.”
For example, when I was six and convinced there was a monster under my bed, my parents let me sleep with a baseball bat.
I am going to print this out when I go to babysitting jobs?
And use these tactics?
And when the kids doubt me I’ll tell them that it comes in the Official Adult Handbook in the section “Combating Monsters” although I can’t decide if that would make them more upset or not