My 17 year old son admits to smoking weed. He lies so much that nothing he says can be taken at face value. He has no morals and does not respect the rights of others. He is currently in juvenile prison and doing poorly as far as making any progress in the programs he must take part in. Nothing is his fault.
I see no point in talking to him about his behavior. It has all been said before and things continued to go down hill. I informed him that I was not going to put money on his books for phone calls. He gets 80 min. a month from the state and that is more than sufficient. His phone calls belly aching about how horrible his life is stress me out.
We can't dictate how others live their lives, but we are not obligated to participate in their lives. You have told him numerous times what you do not like about his life style. Nothing has changed and you are the only one feeling bad about your relationship with him. you can't change him, but you can make your life better.