Today I saw a question How to nurture my child to be fearful?1, and the fearful in the title sounded too harsh to me. What could be used instead?
1 Now titled How to nurture my child to be cautious of her actions?
Fear gets a bad rap. There are some things that children must, for their own safety and survival, be afraid of (fire, snakes, scorpions, speeding cars, etc).
That said, one does not have to teach a child to be "fearful" (in the sense of having an abiding, continuous fearful attitude).
What you need to instill in them is (appropriate) fear of the things in their environment that can injure of kill them.
For some parents, this includes "strangers" (that's where the fine line comes between teaching some basic common-sense safety habits and instilling a morbid, crippling fear of everybody.)