The future of Children responsible for the future

Recently, I hear news about issues of Chinese people in Cambodia almost every day.
There are many Chinese tourists and residents in Cambodia, so the number of issues might spontaneously increase, but it could be called a social problem.
There are also Chinese people who work respectably in Cambodia, and those people would not appreciate it at all. There is a Chinese person who I work with from time to time who comes to Cambodia once in a few months and works so hard that he even forgets to have lunch sometimes, even though he doesn’t live in Cambodia.
The other day, I asked him what he would think about the increase in the number of crimes by Chinese people in Cambodia, and he said that the number of crimes in China was decreasing and it was disappointing to hear about their crimes in Cambodia.
I wondered if the number of crimes in China is really decreasing, so I researched. In fact, the number of crimes by Chinese people in Japan is decreasing, and the number of crimes by them decreased this year for the first time since they started to take statistics.
I might have prejudiced against Chinese people as well as I could not straightway believe that the number of crimes in China is decreasing when I heard it, even though I did not know anything about the country.
I also heard about this issue called “The Little Emperor Syndrome”, which is an aspect of Mainland China’s one-child policy where children of the modern upper class and wealthier Chinese families gain seemingly excessive amounts of attention from their parents and grandparents. This might be one of the background factors of the issue.
So, I thought that the same phenomenon might occur in Japan if there are a lot of only children, so I looked it up and the average number of children a woman gives birth to in life was 1.43 in Japan in 2017.
It means there are a lot of only children in Japan. I would like people to educate their children without pampering them because if the children are pampered as only children, they could be selfish, which could lead to an increase in the number of crimes in the future.
On the other hand, the average number of children a woman gives birth to in life in Cambodia is 2.56, which does not seem to have problems like China or Japan, but many of my Cambodian friends seem to pamper their children very much.
When I was a kid, I was not allowed to drink juice while having meals, and furthermore, if I ate snacks before dinner, I was scolded very much. However, my Cambodian friends don’t say anything to their kids when they eat cakes or ice creams before meals and let them do whatever they want without caution.
I can only see one aspect of them, but I sometimes wonder if the children’s future would be alright.
I might be worrying unduly, but I’m thinking about bringing up my future children strictly, but once I have them, I might become a parent who spoils his children very much.