I understand what you mean this is just something that my parents are worried about. They don't want me to end up being alone.
There's nothing wrong with being alone. It's better to be alone than with someone you have a half assed connection to. Your parents are from a different generation, one where it sounds like they had to base all life choices on survival, and therefore, they cannot understand the lifestyle of someone younger. It sounds like it's making you feel kind of depressed. They shouldn't be sending you into panic mode.
It just isn't fair to anyone involved to have children with an agenda. The only reason to have them is because you e found someone whom you absolutely adore and create them out of pure love.
Only have children because of what you can give to them. Not what you expect them to do for you. This is unconditional love. All children deserve it.
I would suggest you read some psychology books about parenting. This is a good article: http://gettinbetter.com/BPDparent.html
I realize it's very blunt but it's very significant. The circumstances you're describing for bringing a child into the world are unhealthy. The statistics are very high that a child created under such circumstance will develop a personality disorder.