What parents and others are expecting

All my life till now (I'm 34 running) I've had an opinion about myself. Doing what I want to do, and doing so I thought it's "right" to follow your heart. Well...! Following your heart may be a great idea for some. But in my case it seems a lot of people are paying for my freedom of thought and actions. I today feel accountable to them all.
They said one thing that made me to think more intensely that "though you're a boy but you aren't behaving like one when you run away from your responsibilities." It makes me to think.
They also brought an example of a boy in the neighborhood who started earning low in the beginning but is daring now to contribute good enough that my parents can't expect from me within six months or so.
Makes me to think again.
Thay said they're worried about my marriage as I'm getting older year by year. My argument was that I'm ready to get married but not with the compromise but with an appropriate person, and if I find no one such I can remain single. It disturbed them.