Tooth Fairies are indeed real, and the misconception of there being only one Tooth Fairy is false. They are in essence a rogue union of capitalist fairies who meet a paranormal market demand. They know that baby teeth have magical value in various potions, and spells due to children possessing the magic of innocence. The same magic marshaled on Christmas, Easter, and even Halloween. So the Tooth Fairies met the need by becoming tooth scavengers. They collect baby teeth that kids leave under their pillows, and in turn leave an amount of money which is generally in the currency of the nation the child is in. Although in the distant past they’d leave gold or silver. The amount is based on the condition of the tooth. In fact some Tooth Fairies will leave a note praising the child on their tooth brushing habits. The whiter, and brighter the better.
The teeth are then sold on the mystical supernatural black market, known as the Black Bazaar, to various sorcerers, wizards, warlocks, and witches. They are generally paid in gold, and silver. The amount the Fairies receive for the teeth is far greater than what they leave for the kids. So the business of baby teeth is quite profitable for these capitalist Fairies. The supernatural industry is made even more profitable due to parents leaving the money, and then throwing the tooth away because they don’t believe in the Tooth Fairy. The tooth is then retrieved by the Fairy free of charge since the parents left just compensation in their name.
Now you might be asking why don’t the Fairies just take teeth from the garbage to begin with? Especially from dentists offices. There are certain metaphysical laws set forth by Angelic, and even Demonic forces along with Earthly Nature Deities. Basically paranormal beings cannot take from an innocent child without permission or compensation otherwise they shall face certain undesirable repercussions. Particularly when the teeth in question may be used for either good or evil. Tooth Fairies are constantly scouting family homes around the world watching, and waiting for children to lose their baby teeth. They’re waiting to see a tooth placed under the pillow, and whether or not the parents will do their job so they can get a free tooth thus boosting their profit margin.
You might also be asking what does a Fairy need with money? Firstly, the collection of gold, and silver is a status symbol among these type of Fairies in the same way it is with Leprechauns, and their magical lucky pots of gold. Secondly, Fairy gold, and silver is imbued with magic just like Leprechauns. It has magical properties that can be leveraged for power positions in the supernatural world. Thirdly, those collecting enough gold gain powers, and can eventually change their appearance temporarily so as to appear as a full sized human rather than a hand sized fairy. They then use their fortune to lead lives in the lap of luxury, and exercise power in the human world of business, and even government. These Fairies are not to be messed with, and pose somewhat of a threat to various other paranormal powers jockeying for global domination. Once at this point they generally give in to the forces of darkness, and become demon like!
Despite Tooth Fairies lust for power, and profit they do care about the kids whose teeth they sell. In fact they originate from a line of Guardian Fairies designed by Gods & Goddesses to protect children. Unfortunately spending too much time around humans rather than Mother Nature & others of their own kind ended up warping some to become Tooth Fairies. Thankfully this instinct to protect kids stays with them! They’ve been known to defend children from dangers both normal & paranormal in nature. Some eventually become disenchanted with the tooth collection game after several centuries in their immortal lives. It’s not uncommon for them to return to life as Guardian Fairies looking after the welfare of children. After thousands of years they may ascend to become Tooth Nymphs, and possibly even Dental Gods & Goddesses!
The Tooth Fairy always appreciates recognition, and enjoys reading letters written to them by children. These are the kids who tend to be the most protected by Fairies! The ones who end up having good luck in life! In addition it never hurts to compliment a Tooth Fairy because it warms their heart causing them to give more money, and start to rethink their profiteering ways!