Points - thank you for being so understanding about the inevitable venting occurring on your thread and you are right about people taking the chance to let off some steam on MN, it is after all a perennial issue!
My DD was lucky at both her current and previous school, as they both allowed her to progress up through the scheme at her own rate (comprehension was checked via PM benchmark in reception). On most occasions (though not all), I told the school each time I was aware that she needed to move up a level. If you pay attention it's obvious when a child needs to move up and I was never wrong (they would benchmark and she would successfully pass the criteria used in PM benchmark for the next level, or occasionally two).
If they had not done this, however, I would have bought scheme books and not bothered with the school books. To be fair though, DD loves scheme books. She was reading Biff, Chip etc. while 4 in reception and the stories suited her just fine, by the time she'd just turned 5 she was onto more varied stories (they had banana books in gold band, so finally a change from ORT) and now, at nearly 5 1/2 her current school has at least 3 schemes to choose from (in lime) - although there are 6 more levels after this (hence my other post to try and discover what those levels are all about).
I also like reading scheme books - funnily enough because of the variety and perhaps because our local library is very limited. For example DD recently bought home a book all about making buildings, with lots of info on scaffolding in particular. I was thinking
but she gave it 9 out of 10! At our library books like that tend to be large and dense and this puts her off (certainly she's never shown much interest in scaffolding before
).
The point is that when reading for pleasure it's Rainbow Fairies all the way, so to me the reading scheme books serve a purpose, they're quite short and can extend reading in unexpected directions. Of course that's can, not that they necessarily will, depending on which schemes a school buys and whether or not they make children read every book in each stage (which smacks of engineering an easy life for teachers to me - although any teachers that do make children read every book are welcome to put me right!!).