You seem to think you know a whole lot about how I interact with men. The only thing you’ve been given is “I’m cautious” and you’re comparing me to, in your words, a horrible alcoholic.
I am not you, my life is not yours.
You can be polite, nice, compassionate, etc. without TRUSTING someone. You can do right by people without giving them your trust. A lack of mutual trust does not perclude being a good person.
Implicit trust in a stranger is at best naivety, at worst ignorance.
I hope you drop the superiority complex someday. Assuming you know better than someone you know practically nothing about is delusional.