There are many dangerous places in many worlds from what I have come to understand. It's arrogant to think any particular world makes you capable of defending against everything that might come from a place that you've never seen. You have magic; you should use it.

[He knew she had been learning blood magic, and given what had killed him and how, he knew she had plenty of magic to utilize if she wanted to.]

Maybe to you. To me, it was the usual risk of daily life.