This is why exposing a child to outside world is important. From learning cycling to dealing with stranger, we need to teach and introduce to them with differrnt situation. Here i see the old school of people does that effectively. But again, the real life event can be threatening, and it can send Shockwave down the spine. But being exposed and learned about the differrnt event can help a person to recover faster...
The "dealing with strangers" is a big one. I find a lot of younger people aren't very good at reading people, which means they trust when they shouldn't, and don't trust when they should. If you think about it in terms of only trusting those who make you feel good, you will get into a van with a stranger who offers candy, but be upset at a boss who tells you what to do at work.