I like the small size and strength of packaging that can take the game over. The logo at the top left on each card helps children to identify the family (ghost frog ...). The 4 icons at the bottom of the cards show the father, mother, daughter and son of the family.
The +: the character is surrounded on the icon which allows you to see the members missing. The ++: originality families. No pets of the firm but colorful characters.
The - the cards are a little fragil for a child of 3 years.