Whether a VW Polo VI 1.0 TSI OPF IQ.Drive DSG (7-Gang) is a good family car, is not easy to answer from a technical point of view. families have a wide range of requirements, so this consideration only considers the common aspects.
The VW Polo brings 5 seats with it which is basically good and sufficient for many families, but the car fluffs when it comes to the trunk - 1125 liters of volume might not be sufficient for most families. There are no Isofix brackets installed. These could be used to secure child seats easily and safely.