I'd also like to give you props for helping him with this, regardless of how it turns out. Based on the fact that he took the pre-tests and did well enough to likely pass those parts of the GED tests suggests that the capacity and at least some motivation are present. Sounds promising, to me.
Not sure what you're saying with respect to college prep, though. Do you feel that college is the preferred choice for him?
If he's not interested in going to a university, a technical or trade program could be solid options, and ultimately more rewarding for him. Has he been encouraged to explore those options? Feeling like he has support for doing so could be motivating in itself.
When I went to high school only 50 years ago

, there was college prep and vocational paths. We know that he has zero interest in college, so if we had been more involved, would have asked the school district why was he in a trigonometry course? According to him, they made him take it.
The real issue here is that he has no clue what he wants to do. At one point it was police officer, at another realtor, his father is a head chef who got laid off during the COVID crisis, he loves to cook, but “only for himself”. His emotional issues don’t help, he is moody and seems to be depressed. His parents took him in for help, but he refuses to take meds, because of the side effects, according to him. My wife who has been taking Paxil for 30 years failed to persuade him, this was possibly a good option.
So his minimal plan is get his GED, get a job at a Raising Canes Chicken Fast Food*, and move in with his friend who is supposed to be buying a house. All I can say is that it is something, better than hanging out in his Father’s basement, but at least it is movement for now. As I said at the beginning of this thread, he has to get fed up with his situation before he does something about it and hopefully this is phase one.
*Of note, none of the fast food restaurants require a High school education for employment, but he has been convinced he needs one, which is good. The thing about any diploma or degree, is that in a crowded hiring market with too few jobs, employers frequently use diplomas as a screening tool, because the diploma means that you have the ability to apply yourself to something, even if it does not guarantee you’ll be the best employee, it’s one primary way to screen a group of prospective employees.
Maybe it was a different time, but as someone who realized I had to do something to support myself for when I became an adult, my career choice was a no brainer and admittedly, I was very lucky to have identified something, two things that I loved (despite many challenges) that paid well, and for being a commercial pilot, I was extremely motivated to make it happen.
In comparison, no offense intended to anyone, everything else, working in an office, seemed dull and grey. If it had not been a pilot, option 2 would have been architect and I took prep courses for that in college, while I pursued my 4 year military scholarship to have someone else pay my way to being a pilot.
So when I see someone drop out of high school for reasons other than extreme financial hardship, or instability at home, I have to ask what is going on? Yes his parents are separated and getting a divorce, but dropping out of school is a dead end choice as in, this is what you did today, but what are you going to do tomorrow? Is it that hard to see this?
Minnesota has a significant % of kids who drop out of school, when our son graduated in 2000, but Nationally less today, than 50 years ago (
Link), while realizing the economy today is fundamentally much less forgiving regarding a low education level. When you drop out of school, how does the individual view the next step? I have to believe there is a disconnect or not seeing the reality of the situation.
But it’s the psychology of dropping out and not being able to see the forest for the tees element. His emotional issues are not helping his situation. I’ve talked to him many times about his path, and he’s always said he has one, but he has strayed from it several times now.
And I’ll be clear about something, helping him, is not carrying him, we are too old to carry.
