A few days ago, I had a conversation with a person who is the same age as my father, and we chatted about many topics. We discussed the reasons why modern people are reluctant to have children. I asked a question: why did our parents' generation all have several brothers and sisters? Back then, they were very poor, and today's standard of living is much more prosperous than that of people in the 1970s and 1980s. He told me: back then, it was a planned economy, and everything required tickets. Having more family members meant more meal tickets. Basic necessities of life (grain, oil