Can flexible employment social security be shaken in Beijing?

Paying the social security card of flexible employees in Beijing cannot participate in the lottery. Social security cards are used for medical treatment and can only play a role in hospitals. You can't participate in the lottery until you get a driver's license. There are two ways to participate in the lottery now. One is that individuals participate in the lottery, and the other is to participate in the lottery in the form of families. I heard that the second possibility is higher.