In this, if I have to make a guess, I would say that part of the reason is what our society value.

I mean "girls don't dream with being princess anymore, they dream with becoming influencers". Boy don't dream with becoming scientist, they dream with being sports stars, famous singers, and a few of them the next startup unicorn founder. Notice that even the last ones aren't supposed to need going to college (see Mark Zuckerberg that didn't finished). Most bys doesn't like to study (neither do girls).

The thing is that while girls grow up listen to grandmas and mothers about how important it is to study because they wasn't allowed and that they need to do much better than boys to get the same they do with less effort, the boys also hear that they need to do less to achieve the same, so instead of studying, they go play video games. And then, they look at streamers that get rich by playing video games and think that they could be like them. So why make the effort to study when they can do much better by playing video games? They are not seeing all the boys who doesn't make it.

And here, it is up to parents to teach them that they need to make and effort and study even if it is boring. That they need a "back up plan" in case that they can't become successful streamers/influencers. In that, rich families and medium/high class is usually more successful, because boys can see that they parents did very good/Ok by working hard. But for low income families, the payoff of studying hard is not that clear. So they bet all to the dream of being the next who make it as "star athlete", influencer, streamer, rapper or whatever.

And I agree it is a problem. Education makes for fairer societies. so we might need to think for more immediate rewards for the boys who study and do well. Telling a 10 years old that he needs to study hard to get a good job to support a family is not as effective as the rich streamer life earning millions for playing video games. Listen to the boys and what they dream of and it suddenly makes a lot more sense. Ask them, what are you going to do when you grow up? All boys have a plan, it is just that many doesn't have a realistic one. They have dreams, and that is OK. But they need the back up plan. And to know the real work required to achieve their dream.