Ever think about the world your brining your baby into?

I was at the beach the other day, and I was watching these girls who looked about 12 years old, and the way they were acting etc. I am having a girl and was thinking about how girls will be when she is 12, if the girls are acting like this at that age these days. It can only get worse right? These girls are wearing clothes that make them look like they are trying to hard to look older, have older guys around them and smoking and drinking at such a young age. I have also noticed how many pre teens and teens are having these days, it makes me worried about what kind of world I will be bringing my daughter into, and what kind of people her school mates will be. Sorry this sounds really deep and over-thought, but I am just wondering if you mommies and mommies to be have ever thought about the same thing?