A couple of unrelated points that came to mind after reading over the posts I missed last night.
First, if there are any negative implications to the idea that BL apparently did not attend college, they would also apply to GP, as there is no indication she attended college either as far as I know. Personally I don't think anything useful to this case can be gleaned from their college plans.
Second, when we say that "nobody has come forward" to confirm something, that means nobody has come forward to the public. There may well be witnesses who have come forward to police. We can't assume that because there is no public confirmation of, say, BL moving stuff out of a storage locker or GP spending a full week in a hotel, doesn't necessarily mean it didn't happen.
MOO
I agree that focusing on the fact neither GP nor BL went to college isn't likely to be productive. The assumption that every high school graduate should go to college doesn't make sense to me anyway. Far too many students end up with some college credits but no degree and a pile of student loan debt. Apparently GP thought about it though as she applied to Cape Fear Community College when she lived in Wilmington. But reportedly she never enrolled.
Gabby Petito once lived in Wilmington; friends share memories - WWAY TV
CFCC, like all community colleges in NC is open admissions so she would have been accepted. I guess she changed her mind.
JMO