[starkparker]

Here's how I fare on that. Each checked box is something I have.

[X] "The trick is to have parents",

[ ] who are alive,

[ ] "who aren't homeless",

[ ] who have housing that is safe and functional,

[ ] who have room for you not already occupied by other family members in greater need,

[ ] who "had a sofa",

[ ] or if they're dead, at least left you with enough money as an equivalent

[klipt]

Who live nearby. If you're an immigrant and your parents live another continent, hard to live on their sofa and then get a new visa to come back.

[unactionintel]

I'm never sure what to do with this class of comment - it reminds me of guys who say they can't get a girlfriend because they're 5'8".

(Also, you forgot people whose parents are able-but-unwilling. This also sometimes makes some things harder than they would be, compared to, say, being given fistfulls of cash each weekend by your rich parents who have a sofa AND a bed.)