isn't Narnia a land more for children and
the young?
Back, and back - to your question.
We need to start with '
definitions/explanations.' What is meant by "Narnia" above?
If the meaning is "Narnia the book series" yes, it's more for children and
the young. More so than The
Hobbit was even.
If the meaning is "the Land of Narnia itself" however, it is full of old people, fat people, skinny people, mean people, youths, some good people, and animalia of all
ages, sizes, and abilities to speak. In this sense it is not "a land more for children" - though given its focus on bringing
events happening to and around "the children" mostly to the fore, it can feel like it at times. But like
Tolkien, Lewis brings forward all the same morality issues, interplay of cause and event, action and response, situation with opportunity for success or failure, to be evaluated, recognized and understood just as we see it in our supposed 'real world.'
Regarding the descriptions of 'the land' itself - i.e. descriptions of those
places where the poor live, lifestyles, the establishments of the wealthy, the
cities,
plains, distances,
trees, forests, shrubs and bushes introduced, etc. - i.e. the "panorama" within which the story is set - well - it does seem pleasant - though I find them less well described and so less relatable than much of Tolkien's work. They are left just a little more "to the imagination" due to a bit less textual definition.
I don't really think I find them more 'for the children' except with perhaps the animalia... the talking beasts of every kind. This requires an adult to set aside a great deal of repressive cultural pressure and experience to 'conform' to societal norms - which the adult has a much harder time doing than the youth.
(This is what makes Fantasy at large difficult for so many. Oddly, there is a group that can receive 'science fiction', which frequently contains a great deal of equally "idiotic" conceptualization and acceptance - but it's not "Fantasy". "Science Fiction" tends to 'sound' so much more "realistic and adult" than "fantasy". After all, it contains 'science' does it not? That too is by and large a result of societal pressure, background and experience.)
Such a seemingly simple question you asked... nothing seems to stand alone.
I suppose in short, for Ent, the 'simple' answer would be 'No.' Overall I do not see "Narnia as a land more for children and the young"... unless we're talking about Narnia the 'Book Series' itself and its general target audience.