If "Nobody, but nobody, can make it out here alone," what are we supposed to do?

What i think we are suppost to do is find somebody that would make us not feel lonely in this world. But in that case i think we can make it out in this world alone alot of people did. Ok, i understand we need a shelter, food and clothes. But if you really think about it are parents have to take care of us until we are ready for the real world. Most people dont have there parents and they are raced by stranger that dont raced them real good because they are not there kids. And if some kids make it out in this world alone that are raced by stranger they dont get treat the some as other kids. Then they become kills or alott of them become business worker. And want to be upper then the rest of them.