This may not be what you're looking for but heres a thought from someone whose getting ready to graduate college debt free.
I was very lucky in that my parents were able/willing to pay for my college in its entirety but that was based on a few ground rules.
I was expected to go to class and get good grades obviously.
I went to an instate school and busted my ass for scholarships
I work when I can to cover my own expenses
The biggest thing i can recommend is when they're old enough push them to take AP classes in high school. I am graduating A semester early because of the opportunity to go into school with no general education left to complete requirements. By doing this I am cutting a semester worth of tuition out and beyond that was able to get a 6 month lease so just rent alone (not including utilities) I am saving around $3,000. Add in $70 a month of utilities and a semester of tuition I am able to save thousands of dollars.
Again this may not help but just a thought