Too much love = harmful???

Few days ago I was watching a Taiwan talkshow which is host by a famous Taiwan guy.
The people that are invited are a group of teenagers.
The topic is about how some parents go about 'detecting' their children whenever they
are out roaming the streets with their friends or some even call their cellphones and ask funny questions about them like "Who are you" and "What is your name?". Some parents are so ridiculous that they stalk their children on the street lol...Talking about stalking...a parent rode his motorcycle and follow his son on the street and his son knew that his dad is following him.
So, being a SMART son, he purposely turned back to look at his dad then that poor old man just turned and bang into a wall or something like that.
I know of someone(both the father and the child) that he always peeped that his children smses and always restrict the child form doing this and doing that. I felt so sorry for that child and I can feel that that child is living is a prison.
Sometimes I was thinking YES it's true that all parents love their children and were rather they themselves suffered then their children but think back,are you giving the children space to breathe???This is a question that all parents should think...Teenagers like us need privacy and respect...