I am in my mid-forties, and I also recall in my ´teen years how we could leave the front door open, the keys in the car with the windows wound down in the car park, and the money for the milkman outside on the doorstep overnight. Why we have to now hermetically seal ourselves in our prison homes, and not carry cash around at all, is tantamount to greed from those who want to take your things illicitly, and a significant drop in social values.
There was a time when you could trust nearly everybody, now the converse is true.
Yury above mentioned how people in Russia have a very high level of security in the their homes. How right he is. I have seen it for myself, it is absolutely stunning.