Grammar schools don't have waiting list, entrance is secured if you score highly enough in the entrance test/11 plus exam.
Sorry I disagree, at the Grammar school up the road from us there is a waiting list and people have had their children on it since they were born. There is still the exam to get through as well.
where I'm from in the UK there's no waiting list unless you're outside the catchment area or coming in later on in life. Kids in the catchment area get the chance to take the 11+ and if they pass they're in, if they don't pass they're at the local comp instead.........but then this is further up north, there are more people in the south east so it's possible that they could have waiting lists because of that.