You are correct in asking are the dangers greater today than 25 years ago.
I grew up in a time, if I wanted to "camp out" I could. Many nights my friends and I would sleep out in the yard with a sheet made tent without worries. When it came time for bedtime, the first thing we did not HAVE to do was make sure the door was locked. When we went shopping, most of the time I went to my favorite department while mom and dad did the same. WITHOUT fear.
In todays time, I feel we must take many more precautions when it comes to our children. Hands down, there are so many more dangers.
Our teens are our tomorrow. With that said, does it not make sense to protect them at all cost and to ensure their safey? For now, they are just that. Teens.
Think about when you were a teen and compare that to today and then ask the question again.
In short answer to your question. No.