My sister is a year one teacher in a fairly deprived area of London. She says that my DD (2.5) is at about the same level in many ways as about half of the kids in her class. DD is pretty much average for her age. My sister gave an example of how a typical child in her class would tell her a simple story and it was basically the whole vicky pollard stereotypical thing, but I thought that teenagers only speak like that because they think it is trendy. I know I am a parent of a toddler, so don't really "get" older kids yet, but surely if they can't tell a simple story or count to ten or even recognise their name written down, they don't have many chances already? I just found it desperately sad that these kids were already so different to the kids I am used to, and it's not even like I come from a very privileged background.
She also said that a lot of kids will have terrible attendance, and it is down to the parents not seeing the point in sending them to school. They will also turn up with things like a packet of biscuits instead of a packed lunch.
She said the kids themselves are lovely, but she spends so long in class trying to teach them really basic things, that they really have no chance of getting even near the targets.
We are pretty poor (ie we are on benefits, in a rented house, no assets and so on) but I like to think that we are lucky enough to have the background for it not to affect DD. No one would purposefully harm their kids chances (or at least very few would) so the parents must be in such a bad place. Not every kid in the class can have SN, surely?