Does the perfect family truly exist in real life or is it only on television and the internet?

Especially over the holidays (but not only then) so many people tell horror stories of fights and feuds (often fueled by alcohol) between family members. Or they tell of messed up kids, depressed adults, unemployed relatives and marriages deteriorating. The list goes on forever. Yet on telly and online, I hear people speak of their perfect children, best friend spouse, wonderful family relationships. It always makes me wonder, are these people kidding themselves and their audience or do these lucky ones actually exist?