An ideal family, or a perfect family, in my opinion, is one in which the members are supportive, they always help, respect, trust and understand each other. It is usually seen as being composed of one kind mother, one hardworking father and two or three kids, which live in peace and silence and never meet difficulties. To me, a family isn't just composed of rich, poor, problematic or happy individuals but of a solid, unlimited supply of love.
In an ideal family, communication is the solution to all problems. Parents never yell, everything is solved calmly, and there are no quarrels. It is a family where honesty prevails and where there is no place for lie. Parents and children are very good friends, always ready to help each other, no matter what it would cost. So, in this way, we can think of the ideal family as a puzzle that is not missing any parts. But it is too good to be true. In real life in each family there are tensions, conflicts, difficulties, misunderstandings, and stress. All this takes place between spouses or between parents and children, and perfection isn't an appropriate word for those situations.
I strongly believe that there are happy families, which live in peace; there are united families always offering help and support to each other; there are rich families, which get everything they want; and there are a lot of big families in which children are really supportive and they offer a lot of respect to their parents, but it doesn't mean that this families are perfect. Happy families cannot be always happy, united families can't solve all their problems, so that it happens to quarrel sometimes, rich families have even more difficulties than the poorer ones have, and the large families are usually too poor to ensure a good education and life for their children.
So I can say with certainty that The Ideal Family doesn't exist in real life, it can be seen only in movies or advertisements where some strange persons pretend to be happy together, even if they don't even know the name of his mother, father, sister or brother. In real life not everybody can play this role.