There is a lot of information out there even some christian pages that negate the idea that 13 is unlucky, and pointing to biblical excerpts to back it up.
This was all pretty interesting. So not just a christian thing but a large part.
As far as their constant fear based campaign against women I agree Debbie Jordan, but they are not the only religion or culture who have promoted misogyny. As we have seen in even the last 10 years, attitudes are changing. Slower than we need but….Compassion and prayer for the victims and hope that those responsible for evil and thoughtlessness will see that their lives would be easier without harming others.