Liu Bei's son was not wrong when Liu Chan was in time, and although Liu Bei was very capable, he was also thanks to the support and help of the god Zhuge Liang, otherwise he could not have governed the Shu kingdom so well. Although Liu Chan's ability is not strong, he can also be regarded as an emperor with mediocre qualifications, if in the era of peace, he is likely to become a Ming Jun praised by posterity, but unfortunately he was not born at the right time, just encountered a chaotic world.

He was simple in thought and did not have any strategy, of course, he could not be compared with Liu Bei, so he was often said to be somewhat incompetent by posterity. Liu Chan was incompetent, also reigned for forty years, and governed the Shu state quite well, as to why the Shu state declined later, it can only be said that he cut Wei too frequently, resulting in the loss of money and wealth, and he did not have any opinions and political decisions, and listened to the rumors of villains, which made the Shu kingdom end up in such a fate.
When Zhuge Liang was alive, Liu Chan was very obedient, he knew that this was the person that his father Liu Bei valued and trusted the most, so he boldly handed it over to this person, so that a weak country had to support it. At that time, the three powers were at their peak, and if they were not careful, the Shu kingdom would be divided and the country would be disintegrated, so Liu Bei, with the support of Zhuge Liang, could be regarded as a slight foothold in the Three Kingdoms.
After his death, he was also entrusted with supporting his son Liu Chan as emperor and completing the great cause of reunification. Liu Bei's qualifications are indeed superior compared to his son, but he is a man who has been in the battlefield for a long time, and he has never seen any big winds and waves, and although Liu Chan has also experienced suffering, he was just a swaddled baby at that time, he didn't understand anything, nor did he know anything to be afraid of. As Liu Bei's son, why didn't Liu Chan inherit his father's qualifications? What is the difference between the two?
Liu Bei can be said to have laid a stable foundation for Liu Chan, when he was wandering around, the four seas were home, he had seen through the misery of the world, and in many helpless times, he made his own decisions. And Liu Chan, what he needs already has, there is a home, there is a foundation, there is a father's paving, there is also the guidance of Zhuge Liang, what he has to do after that is to stabilize the political situation, so it is not how strong Liu Bei is than Liu Chan's qualifications, but the living environment of the two is different, one has been in the battlefield for a long time and has become "Iron Man", and one is relatively comfortable.
Therefore, there is no substantial comparison between the two, in fact, it is somewhat difficult to say that Liu Bei has laid the foundation, but it is even more difficult for Liu Chan to keep the foundation, he wants to maintain the political situation and let the people live and work in peace and contentment. The difference between the two is nothing more than the environment and the different "nature of work", in fact, both sides rely on Zhuge Liang to let the Shu kingdom survive and develop, so who should not be much stronger than anyone.