Why does it take so long for China to build an aircraft carrier?

There are still several problems to be solved in this regard: First, political issues: China advocates peace and does not want to cause unrest in its own geographical area. China's aircraft carrier may cause anxiety in neighboring countries, such as Japan, South Korea, India, Indonesia, Malaysia, Thailand and the United States. They will see this as a threat and have reason to expand their armaments. If handled carelessly, it will trigger a regional arms race. Japan, in particular, has long wanted to relive the dream of a maritime power and break through the restrictions of local defense. Second, geographical issues: although China's coastline is long, it is close to its own territory. Land-based aircraft and missiles can be reached, and ordinary ships can basically solve the problems they can't solve, even the problems in Taiwan Province Province. Moreover, international maritime transport lines are not threatened, and the demand for aircraft carriers is not very urgent. Third, technical problems: Although China's shipbuilding industry is still at a high level, building an aircraft carrier is not like building an ordinary ship. It needs higher and more advanced technology. Moreover, China has never built an aircraft carrier in its history. Without this experience, it is impossible for foreign countries to support key technologies. Carrier aircraft is also a problem. According to China's current technology, it is impossible to design a suitable carrier-based aircraft, and there have been rumors that Su -33 can be purchased from Russia. But after all, it is not the problem of your own fleet: the aircraft carrier does not go out to sea by itself, but there are many other ships to escort, and all ships should cooperate closely and be compatible with each other. In this regard, China still has some shortcomings to overcome. V. Funding: In the United States, it costs nearly $5 billion to build an aircraft carrier. After the completion, a large number of personnel should be prepared, and the daily maintenance will cost a lot of money, which adds up to a lot of expenses.