Some people say that the traditional calendar in China (such as birthdays) is not standardized and unreasonable. Is this correct?

I am disappointed that people in China still continue to use the lunar calendar. Since the democratic personage led by Dr. Sun Yat-sen, the forerunner of China's democratic revolution, the history says that the Revolution of 1911 (1911) overthrew the old imperial system, and it began at 19 12 1. However, people still use the lunar calendar (the year of supporting cadres), and now a whole hundred years have passed, which leads to the fact that the dual-track system of social affairs in China has never been separated. The confusion in using the lunar calendar so far is due to misunderstanding the influence of the moon and the sun on the earth. Typical is the indefinite day of the Spring Festival. The joke to the world is: the annual concentrated migration of Spring Festival travel rush population, which is caused by many people's employment in different places, is called "Spring Festival travel rush fever" in Spring Festival travel rush, China, and it is a catastrophe in terms of time, money and transportation. As the date has not been fixed, I don't know when the dual-track chronology system can be cancelled. My birthday is a solar calendar, not a lunar calendar.