Thoughts

So, I thought I would have a word about things. Nothing in particular just some thoughts that have been playing on my mind.
To start with:
How do you tell someone, especially a good friend that they are playing a dangerous game when it comes to the way they live their life.
Do you just come out and say it or do you bite your tongue and wait for the fallout.
If you say something and they take it the wrong way, call you interfering, or become outright defensive and start shouting that "If you are a real friend you will support me".
So you support them and it all goes wrong. Then you get "Why didn't you tell me something, why didn't you try and stop me"
I have got involved before with friends lives and have been slapped down for it. But, what kind of a friends would you be if you just let them get on with it and said nothing?
What if your friend says something and then completely does a whole turn around and does the exact opposite, what do you say to them then. Have they lied to you or are they just making a mistake?
I have only a few friends, many aquaintances  but only a very few friends. These are the people I care about, they are my family, sometimes I could strangle them but I love them dearly and will take a bullet or a blade for them any second of any day.
I worry about my friends, most of them are younger than me and I say to them on a regular basis. "What ever you are planning on doing ,I was doing twenty years ago" Sometimes they listen sometimes they don't.
What can you do to help friends who are adamant that they know what they are doing, when it's pretty obvious that they aren't old enough, because they haven't seen enough of life to know. I am begining to bite my tongue these days and not to say anything, it's bloody hard at times but maybe it's the best way..........or is it.
What if one of them gets into trouble bought on by this simple lack of understanding that you can't go through life as if it doesn't matter, that there is always tomorrow.
Do I sound old or do I sound like someone who cares. Maybe I am just from a generation that did care about there friends more.than they do today.