This is due to the lack of land for them to develop the knowledge they have acquired during their education. It could be because they are wrong in choosing the right field of study that makes it difficult for them to develop their skills. If they go to college according to their talents, surely they will know what to do after they finish college. In this case, I can say that they went to college just to join in.
If people find it difficult to practice what they are being taught in school, that shouldn't stop them from learning other skills that can be productive to them, their are many skills that one can choose that will be suitable. Not everyone ends up in practicing what is been taught in school, most people after school they get any skill and make it a career. I don't see reason why people would allow what they learned from school that they can't practice stop them from learning any skill.
Yes. There is still a lot of room and place for them to develop their skills as long as the desire to learn is still there. In my opinion, education does not have to be formal because the essence of education is the desire to act based on curiosity in the mind.
If we see that there is potential in someone and we have the facilities to develop that person's potential, then that is also the best means of education. On this basis I say that there is still a lot of room and place to hone skills.