Asking whether a Opel Corsa F 1.2 DI Turbo GS Line 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 Opel Corsa brings 5 seats with it which is basically good and sufficient for many families, but the car fluffs when it comes to the trunk - 1081 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, if a little more space is needed in the interior, the rear seat can be folded down.
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