no, of course not as long as it’s a genuine effort and not a cynical cash grab (there has been something of a backlash against celebrities knocking out children’s books). so it’s not the producers but the fans of it that come in for criticism. one complicating factor is that in older media children were not taken for idiots. the examples i used as suitable for children (except maybe lord of the rings when perhaps i should have said the hobbit? i’m not familiar) were written specifically for children but who could honestly look down on an adult for enjoying them. whereas if you’re hurtling into middle age and still really into dora the explorer or similar that’s obviously weird. but e.g. twilight? i still think you should have grown out of that but it’s in the grey area