Yes.. because we should not fear of anything because if we fill something unsuitable or suspecious or something else then that feeling is said to be fear for me....
Not at all. Fear may seem like a negative term because it can be a negative emotion. Fear, most of the time is a matter of survival. In my opinion, it is not foolish to fear but it is foolish to fear the unknown. (Also, is this a quote from an anime? I think I have heard it before) Hope this helps.