If I just say "Yes, it's very safe." You may not be able to trust it because it sounds unconvincing. Therefore, I will introduce to you how safe China is from several aspects to help you decide on yourself whether to hop on the plane to China.
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China’s serious crime rate is shockingly low. Strict law enforcement, high conviction rates and strict criminal penalties have made China considered as one of the safest countries in the world. In China, it is almost impossible for you to witness a fight, and you don’t have to worry about when you are walking alone at night.
(Tip: Even though the crime rate in China is extremely low, there will be thieves and pickpockets in crowded places. Remember to take care of your belongings.)
Before coming to China, you might think that China's traffic law enforcement is extremely lax since you might have seen videos of Chinese drivers running red lights at will. In fact, violating traffic rules will not be forgiven, and people may be fined or even detained if they disobey them. Furthermore, Chinese drivers often follow unwritten rules, such as people in large vehicles has right of way.
It may take a while to get acquainted with the traffic rules in China, but you will know how to do it quickly.
It seems that every place in the world will have some scams with local characteristics, which may not be easy to identify as a foreigner. Scams may not be as common in China as they are in other Asian countries, but they also exist, especially in big cities like Shanghai and Beijing. The most famous scam is probably the "tea scam". Usually a very young and beautiful Chinese woman will approach you proactively, taking introduce Chinese tea culture as an excuse and make you buy high-priced and low-quality tea. Another situation is that they will chat with you through WeChat (a Chinese social application), hoping that you can buy the "high-quality" tea grown by her old grandfather. In fact, most Chinese women are relatively shy, and they rarely approach foreigners proactively. If a confident and pretty Chinese woman takes the initiative to approach you and ask you to buy something, it is probably a scam.
In addition, some taxi drivers who do not have a legal license will take advantage of the fact that foreigners do not know the road, charge them high fees, and even leave them in strange places. Even if you know the road, they will use "this is a shortcut" as an excuse, and actually take you around the road several times to charge more. Therefore, be cautious and do not take unmarked taxis.
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