I think there are three reasons, first, from a large aspect, economic development, people's income increased, living standards increased, to children's pocket money and red envelopes naturally more, second, people are constantly affected by the times, change of mind, more attention to the cultivation of children's view of money, the control of pocket money is not too strict, third, the value of money changed, in the market purchasing power has changed, now five dollars, ten dollars may not be able to buy the same previous goods
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