These people are usually there to motivate you to get where you want. If your parents (for example) didn't expect good grades or a job, do you think you would really be motivated? Unless of course, if they have high expectations of you on things you don't want to do (and don't really affect you negatively if you don't do them*), then that's a different story. And if it's just people and society expecting things from you, then you don't really need to pay much attention to it, because in general they won't have those expectations for your sake, they'll get them because that's what society wants or something. It would be them putting pressure on you on things they just want you to do.