Finger sucking
I'm 23 years old and I still suck my finger. Over the years since I was small, I moved from the thumb, to the pointer finger, and now finally, it's my pinky. I only suck it in front of close friends and family, but when I'm alone I suck it all the time. It calms me down. I also twirl my hair while I suck my finger. I'm 23, remember.
So I guess you are only 1/3 as abnormal as this guy.
To whoever said this your an
as*h*le. Its normal.