bbfc rating of my film

By following the rules and regulations of BBFC I have rated my film as a 12A because to is not for young children. Initially I warranted it at 18 , but after consideration I decided to lower this rating because there is no violence , bad language or nudity etc.

The BBFC website

What might a 12A contain?

1)A 12A may include brief sex scenes
2)Some horror film can be passed as 12A , and mine has elements of this genre as it is quite frightening
3)The official BBFC website explains that a dark or unsettling film would either fit between a 12 or a 15

What does my short film contain?

My film only features some behavior that teens may copy , hence my reasoning for not allowing it to be a U . I refrained from using bad language or violence as I wanted to focus on the characters psychology as the scary or imposing element. I don't believe that my film would have been as memorable with violence as half the storyline that is created is simply applied , and that makes it much more frightening.