Our lives are changed by us, not by some one else.
We determine how we want to live , our life style might be  influenced by another person's but that doesn't mean that we live exactly like them.
You always have a choice in life, don't go off blaming the other person for your own mistakes.
Just because they can do something and not appear to have any consequences doesn't mean you should try it yourself, because sooner or later the consequence of your actions will come back and haunt you.