Lots of Filipino and Indian sub-continental kids, so plenty of English is spoken even in the playground, although the accent won't be RP.

It's the "done thing" for caucasian expats to sniff haughtily at the very mention of Delia of Canada/ Memorial, yet they'd be quite happy for their kids to go to state or parochial schools with poorer behavioural standards, academic results and facilities in their home countries