I know that SATs are stressful for many students, but I do not know why. Primary schools pressure kids to do well in the SATs, when in reality, the tests have no bearing on anything (secondary school choices/outcomes) except that it is a reflection of the teaching in the primary school (and of course DC's attainment at Y6). This needs to explained to DCs. No sweat and no stress in Y6. Majority of the schools will do CAT in Y7 as a benchmark on future attainment in GCSEs/ A levels.
@LondonMum20222 'prep schools heads in London ... actively and vocally discourage parents from entering children for many 11+ exams precisely because they don't want the children to get stressed out' - I do not agree with this. Another reason why prep schools limit the number of schools is also to save face. They want kids applying to 'top' schools to make it to those schools. It is all about reputation. It is like identifying kids who can really make it to top schools. It looks bad on them if a huge proportion of kids reject these top schools when offered.
I think parents have the 'power' to strategise on the number of schools to apply to particularly with the existence of the 11+ consortium, and using some grammar school outcomes as a benchmark of DC's early performance. Yes, the prep school will have CAT scores and stuff, but kids who are in borderline CATs can strategise on school applications. Prep school advise should be taken as 'advise' not the 'end all'. Being 100% reliant on the advise of the prep school's head - just because you have paid the fees - is I think plain daft.
Remember, many school over offer and they have done the maths and statistics on how many will actually accept places. Number of applications do not really have to stop at 4.