Education is not a scam, for all I know.
I believe the common saying that "education is a scam" mostly comes from lazy  minded individuals that believes that after graduation, they just sit back and expect the government to do everything for them, and hand over a good job to them simply because they are graduates. They don’t bother applying themselves to other skills, building a business, or venturing into something different.

There are people who studied one thing and ended up doing something completely different, let’s say someone studied accounting and later ventured into real estate. But because of their character, the way they handle money, and their ability to relate with people, they now have a strong network of contacts to sell land to from his accounting department in school with a track of integrity. And truthfully, they were able to do that because of education.

You’re here writing on a technical topic mainly because of education.
Yes, I also acknowledge that the Nigerian education system includes a lot of courses that you might not actually use after graduating. But real education goes beyond the classroom, it’s about exposure, connections, and learning how to think.