It depends. If you were born with FAS or are a Crack baby I am sure this could potentially be life altering. If your parents were really bad role models and you pick up all their bad habits it could also be life ruining. Generally speaking though most people know the difference between right and wrong, good and bad. We all make these choices everyday, so you do pick your own path regardless of what your parents have done with their lives.
Ultimately NO. YOU are responsible for your life. Your 'rents may influence it, or make harder. BUT YOU are the one who is in charge of your life. You can blame everyone else. You can explain it however you like. But, the bottom line is...... YOU must take charge.
I tell my kids there isn't anything you can do that I haven't done(i've done and had to do some horrible things)some I'm not proud of. many I am. just because i did them does not make it OK for them. i'm here to help you can ask me anything.
They could set you up for failure, but you really choose your own path and life. You can choose to make what your parents did as a excuse for your own actions, or you can learn from it, and know what NOT to do, because of them. My mother shot a man in the head with a shotgun while he was begging for his life, over drugs. But I'm not out on the streets shooting people because my 'mommy was bad'. She abused me and my three younger sisters, starved us, used us to get money, that never went to us, but to her drug habit, taught me how to use a pistol at the age of seven and told me to shoot anyone that pulled into the driveway (because she wasn't home for months at a time).. But I took it as a lesson, not a lifestyle. But they can also mess you up without you knowing. if, for example, you didn't get approval as a kid, you might do something that you don't realize your doing to fill the void that you didn't have. An example is the show called 'freaky eaters', these people all have a background where they are lacking something in there childhood that made them resort to that habit, but like I said; its all a choice.
Unfortunately yes, but you and you alone are the one who chooses how the world will see you. What you do in your life says the kind of person you are. Show the world that you are not them and do better for yourself... Never give up and follow your dreams.