https://tinyurl.com/y7uwr3nh
This reminded me that not too many years ago a road in Ireland was diverted (can't remember the specifics) because of fairies.
ETA: https://tinyurl.com/ycq8or73
I remember having quite a fw long talks with Magnus Magnusson (who I knew vey well) over a fish supper and a dram, on the subject of Icelandic culture.
Believe it - many Icelanders took this kind of thing VERY seriously, and probably still do.
I think Magnus' daughter, Sally, wrote a book to accompany her BBC Radio Scotland series on Iclend shortly after her dad died.
She dealt in some depth on thesubject.