In any event, there's been several pieces by key education bloggers - you can find discussions about the indentured educated class being unable to have children here:
Edububble (thanks again for the mention) - "Family Life and Education"
The always-quantitatively impressive SLA - "New Student Loan Debt Forgiveness Idea: Have Kids"
I am also asking people to share their comments about children - I'm trying to collect as many statements as possible. Once I've gotten at least 20 or so, I'll post them here with my own "confession."