Of course it's a reasonable list, most kids of all backgrounds can do them all; and some kids from all backgrounds won't have learned some for a variety of reasons.
One of the issues is around how much extra help is needed or children with special needs. Most will start at a standard school; and although those with the most obvious needs will have a statement or similar & extra help, I find that there is a rather missed out few in the middle.
I was involved a few years ago in a Catch-22 where a child with mild special needs wasn't toilet-trained (the connections were very hard for him to make). School fussed because they were not able to take kids in nappies, I pointed put their special needs policy, special advisors were unable to get extra money (he was "average" in almost everything else, thanks to a lot of hard work by his parents). The problem was finally, in my view, not properly solved as his parents arranged for a nearby family friend to go in & change his nappies. He was finally reliably trained by about 7, buy which time he was assessed & statemented because of his other needs!
A 4 year old who is not listening & paying attention may not have had the proper care, but may also have a variety of health problems / disablities; some health authorities are less rigorous about checks than they once were.