I think this population will be very high in comparison to immigration in some countries in the very near future. I view this development more negatively compared to its positive side.
On the one hand, in some nations, the population of elderly people will be very high compared to postgraduates. This has some financial issues, affects marriage relationships, and increases dependence. In the future, when young people are fewer than elderly people, it creates financial issues at home. They do not work gradually in any field. Whenever they cannot earn money for their family, it affects their internal relationships. In addition, whatever increase or development occurs with elderly people, they cannot survive in the near future. In some cases, sometimes all family members are dependent on their parents or grandparents, and no one looks after their family, which reflects on everything.
On the other hand, there are also some positive developments in the future, such as sending cultural trade and the excellence of their entire life. Their past culture and traditions continue as equals, sharing information from generation to generation. For instance, if some countries remain constant in their past culture, history, or traditions, like Africa, they continue their traditions from generation to generation. Other non-going families, as people who have experienced their life, learn how to survive this modern era and how to build relationships, because it has some positive developments as well.
In conclusion, although we will be more numerous in the future, it has potential issues, and keeping dependent parties is also very concerning, causing tensions and training experience. Despite these advantages, it has some positive development, but it also has more negative development.