curious For you, if you fail you start over and just go on.
For her even one slip-up is completely unacceptable.
And what would she then do if she had a failure? She would start over as well. If she were still living in Syria would she "take far more extreme measures" to protect herself? No. Muslim girls do not wear chastity belts, at least I've never heard that they do. But millions of them succeed without belts. It is their religion. They think that is what they should do.