There isn't a strict age limit. But I'd say it's more suitable for kids 8 and older. It has some situations that younger kids might not fully get, like the cultural references from the time it was set.
Well, it really depends. For very young children, say around 3 - 5 years old, they can start with the most basic Christmas stories with bright pictures. But as kids get older, around 8 - 10, they can understand more detailed stories. And adults, they can appreciate Christmas stories on many levels, from the nostalgic feeling to the moral lessons within. So, there's no set age for enjoying a Christmas story.
Well, Ralphie is 9 years old in A Christmas Story. This age is important as it shows his innocence and the naivete that comes with being a child at that age. He has big dreams, like getting that BB gun, and he's at an age where he's starting to understand more about the world around him but still has that childlike wonder. His age also helps in creating the humorous situations in the movie, like when he has to write that theme about what he wants for Christmas and how he gets in trouble for it at school.
Well, the age of parents in a Christmas story could be all over the place. There are traditional Christmas stories where the parents seem to be mature adults, perhaps around 35 - 50 years old. However, in some modern interpretations, the ages can be more flexible. If it's a story about a young family starting out, the parents could be in their late twenties. But really, it depends on how the author wants to portray the family dynamics in relation to the Christmas theme.
A Christmas Story is generally rated PG. It has some mild humor and situations that are suitable for general family viewing, but parents may want to preview it for very young children as there are a few scenes that could potentially be a bit scary for the youngest viewers, like the scene where the boy gets his tongue stuck to the frozen pole.
The Bible doesn't specifically mention the age of Mary and Joseph when Jesus was born in the Christmas story. We can only assume they were likely in their young adulthood as was common for people to marry and start families at a relatively young age in that era.