Children outside the EU may need a VISA to study in the UK, and must apply to schools with a Tier 4 Highly Trusted Status awarded by the UK Borders Agency.
Only schools with this status can issue the CAS letter necessary for a VISA. Unfortunately, many day prep schools don’t have such a status.
Some families relocating from abroad may have missed registration deadlines at their desired schools. Whether this situation can be rectified would be down to the individual school.
3) Tests and interviews:
The logistics of doing tests and attending interviews also need to be considered. For example, many prep schools in the UK are well-equipped for the various pre-tests and tests for independent secondaries, along with the Common Entrance, which are all usually necessary for admission.
4) English language:
When applying to selective schools, a high standard of English is required in order to be successful in the admissions process. Schools need to be sure that a foreign student would be able to assimilate effectively into their classes.