Do what's right for YOU
Your parents' or friends' experiences won't necessarily be your own. Just because they failed at something doesn't mean you will. Perhaps they lack your will to persevere in the face of long odds. Sometimes people secretly want you to fail; never, ever give them that satisfaction. There's no greater feeling in the world than proving someone who said you couldn't achieve something wrong.
Only you have the right to say you can't or shouldn't do something. Your dreams are your own. Don't let anyone wield that kind of power of you. Stand up for yourself. As Thoreau once said, "Live the life you've imagined."