How to change the concept of the older generation?

What is ideological is the accumulation of long-term practice and understanding. As the saying goes, Rome was not built in a day. Can it be changed overnight? Changing ideas is not forced by others, but the subtle influence of personal introspection. The living habits and traditional concepts of the older generation cannot be changed. With the change of living conditions and social environment, the spring breeze melts the rain and the water drops wear away, and everyone will change. Among them, the fact of personal experience should be the best teacher. Let the facts speak for themselves, which is better than any preaching. Conceptual things can't be broken only by conceptual things. If you do that, there will be a strong collision and the opposite effect will be obtained.