It's about whether BL's got any life goals, not a diss against those without formal education. Apparently there is a subculture, NEET, in which individuals are Not in Education, Employment, or Training. Member @NorthErn2
brought it up way back in thread #16, pg 54, in discussing how BL displays some of the NEET traits.
eta: Yes,
@Allabouttrial, you're right, BL held down a job. From his comments, he didn't appear to appreciate all the hard work GP put into the SM instead of giving him attention. There's also criticism that he lived at home and aside from GP's trip, didn't aspire to do anything else. MOO: During their relationship, BL didn't have any goals, and that's the issue, not whether they're educated. Maybe it put stress on an already tense situation?
GP was definitely not a NEET, as she worked a variety of jobs, took the initiative to do the cross country trip, and spent countless hours building her online channel.