They were adults (18+) when they chose to take on debt to attend college.
I chose to work full-time days, and pay-as-i-went attending night classes at a 2 year junior college.
I transferred into a 4 year school, and attended night classes. The value of a 4 year degree felt like a negative value proposition.
I left 3/4 through by bachelor's to spend my money and time earning a professional certification in Novell Netware Local Area Networking (early 1990s) while working 3 part-time jobs. I was spending over a 100 hours a week working and attending classes.
A Bachelor's Degree for Business Administration isn't worth much - you need to get a Masters, MBA, or a JDA to have real upward mobility.
My middle sister got a BA in Communications, and went back to attend nursing school. She's now a surgical nurse. That time and money spent on the Communications degree was wasted.
My youngest sister got a BA in psychology. That's another professional that requires a Masters Degree for upward mobility. She's now a supervisor with Social Security Admin. That's all her bachelor's degree was good for.