This is a new mod that is probably very needed by many. Being forced to take on the way of the beast isn’t popular among some players. At least you can opt out of being a vampire so why is the werewolf different? Luckily for Skyrim there is now a way to reduce the amount of werewolves running wild at night.
Skyrim Companions No Werewolf Option
Yes! I never understood why they made Vampirism optional and not Werewolve-ism.