Is it necessary to buy social security at the age of 52

It's not necessary. The 52-year-old is approaching the legal retirement age, and employees' pension insurance needs to be paid for more than 15 years before they can retire and enjoy pension benefits. If you pay social security at the age of 52, you need to choose to postpone retirement and pay the fees year by year. Although I have reached retirement age, I can't enjoy pension benefits, so there is no need to buy it.