Why are there so many jobs in sales, insurance and security now?

From the perspective of planned economy and market economy, in the past, the material conditions were scarce, the state regulated and managed, the circulation of commodities was limited, and life was really difficult, including cloth tickets and food stamps. Now it is a market economy, and there is a surplus of goods produced. The simple understanding is that there are too many things to sell, and we need to make a hullabaloo about and call people to see our goods before we can buy our goods.

You can make a career evaluation yourself. If your personality is not suitable for sales, you can switch to other jobs, administration or back office.

I hope the answer will help you.