In my experience DCs grow up a huge amount between 7 and 8. I was a Brown Owl and the youngest Brownies had distinctly less common sense than those only a bit older.
My DNiece(7) is definitely still able to get away with things because she's cute, at 9 she certainly won't.
5 plus can certainly throw toys back in boxes, say please and thank you, take shoes upstairs, put soft toys on bed etc.
They ought to be able to eat reasonably tidily, not spill their drinks and get dressed in easy clothes.
By 7 they should do all this and be able to clean their teeth, find pJs, shoes, coats, sun hats and loads of small things that make life easier. They should also know when not to interrupt and be capable of sitting quietly for short periods if necessary.
8 onwards really depends on your household routine and the DCs interests.
Mine are crap at tidying up because I don't care unless we are having visitors. But they were pretty good at getting dressed, coats, shoes and getting out the house as we had lots of after school stuff. DD1 makes tea because she drinks it and cooks because she likes doing it.
Both strip beds and sort washing. Both rebel about putting it away.