I never had a fear of roller coasters until about 4 years ago when we took our children to Knotts, I was terrified the entire time one of my kids were gonna fall out and didn't enjoy myself at all. No clue what caused the fear tho. I have somewhat gotten over this fear but I cannot ride with my youngest and my 11 year old dont like to ride with me cuz she dont want me to "freak" out on her as she puts it lol. I just came to the conclusion that I have finally lost my no-fear factor and realized that people can get hurt.