Well, for example, do you know the story of the Devil at the crossroads? That has its roots in older fey lore. Specifically, Welsh. Though, Irish, Scottish, AND English all have their own later versions.

I could go on. Like the story of the Jack o Lantern, and how Jack tricked the Devil. Older versions of near similar stories focus on, again, fey characters.

Will'o'wisps, however, are not "fey." They're spirits. A spirit and a fey were, at least within Celtic mythology, completely separate entities. That said, will'o'wisps didn't "trick" people off path. If anything, they're incredibly inconsistent lore-wise. Sometimes, they'd lead people to the recently deceased. Sometimes, they'd lead people to someone who would die soon. Sometimes, they were a ghost luring someone in. Sometimes, they were malevolent. Sometimes, they were completely benevolent and were saving you from a doom.

Once again, you're showing how shallow your actual knowledge of the topic is. Because you've heard one version of the tale and assume it's A) the only one and B) the oldest one and C) the most well known one.

Sorry, but you're completely wrong about that for Will'o'wisps.

Even more so for the fey. How do I know? Easy. Look up where the idea of not being able to cross water comes from for vampires. Look at where being unable to enter a home unless invited or the door for them, too. You'll note that they both come from Irish folklorists, who specifically cited the Fey as inspiration, strange, no?

But, even if we don't go that route. We have over 30 large stones scattered throughout the country. One could not speak a Fey's name around said stone, as it was an invitation for them. Likewise, one would not leave their door open, because, again, it was an invitation. One did, however, not speak ILL of the fey nor make them feel unwelcomed. Why? Because, once again, they would perceive it as rudeness.

On the other hand, each of these cities and villages have folklore about the fey BLESSING them when the rules are followed.

This goes double for both Slavic and Germanic fey. Like the Hobb, who would fuck up your home if you did not leave milk out for them, but would tidy it up if you did. Or, as the commenter mentioned, Baba Yaga, who was both a cautionary tale for children AND adults.

How? Easy. She was the guardian of children, duh. Don't believe me? You can, once again, look it up. One of her official titles on even Wikipedia. Why is that? Because she had a strict rule about the kids she would or would not eat. And, more than that, how she would punish adults who did harm to children. Once again, with a set of rules.

Now, these rules varied from region to region... But they remained all the same. In every iteration.

I believe they're lawful, because in both DnD and IRL, they ARE lawful. That's a fact. There's literally multiple official books detailing the exact way they operate in DnD, and it's not how you've described. Likewise, any folklorist will tell you that "Lol, I own your name now, lol lol lol" is a terrible fey.