Lifes changes

I think that people actually change after something bad occurs. Most people need experience before they can effectivly change and most people that I know are to hard headed to change on their own. But it's not always a bad thing to change after something bad i have time to time but I've learned to expect the worse. but for some people by the time they change it is too late. but change can also occur right before something tragic also which is not a bad idea.