Asking parents for contributions to curricular trips isn't new - I've had kids in primary school for the past ten years and we've always been asked for a 'voluntary' contribution.

None of the local secondary schools I'm familiar with have a feeder relationship with a primary school. Haberdashers in New Cross recently established a local primary school feeder. There may be others. However, as roz pointed out, things are changing and all parents needs to do their own research.

Moreover, secondary schools change - both for good and bad. And kids change too - what seems perfect for them at age four may not be right by the time they are eleven. You could move heaven and earth to get your kid into a supposed 'feeder' primary, only to find six years down the line that the secondary school it is linked to is one you are no longer interested in.