I told mine starting at age 5 to get scholarships, which for the most part, they did, save number one, who disregarded my advice, and who has his own debt to show for it. Otherwise, three will get through with no debt. It is possible.
It is, even if they go the ivy league route. From 4 years of tuition that was well over $200,000, my daughter graduated with just $9000 in student loans. Scholarships covered the rest. She already had a job lined up, moved back home for 6 months, and when the loans came due at the end of 6 months, wrote one check and paid them off. But nobody handed her anything. She worked her tail off for those scholarships and earned the education she got.