In many countries, there is no enough recycling of waste materials (such as. paper, glass, cans). What are the reasons and solutions?

Recycling is often presented as a simple environmental duty, yet many countries still fail to recycle enough waste materials such as paper, glass, cans, and plastics. This problem is not caused by public laziness alone. It reflects weak infrastructure, poor incentives, limited awareness, and the convenience of a throwaway culture.