My DCs primary has a fairly limited range of after school activities - a choice of one or two activities a day - mostly sport, with a bit of drama/chess/dance for those who are into that sort of thing.
I know some schools supplement a range of activities with something generic, like a homework club, so that they can provide a more formal extended day arrangement, but our school doesn't. Nevertheless a lot of parents like me do rely on the after school clubs for childcare cover. (After all, if you only need cover for an hour after school, it can be quite difficult to find cost-effective alternatives - most providers expect to have your child until 5.30/6pm, and charge accordingly).
Now they're introducing a new after school club - a Christian prayer group, and it's been billed as lots of fun, with games, craft, puzzles, cooking etc. My DC likes the sound of that much better than the athletics club she currently does. The only trouble is, we're not Christians, so I'm naturally reluctant to let her switch.
Ok, so this is a CE school, and all parents are supposed to support the school ethos (which we do as regards the formal curriculum), and this is an optional activity, but would it be unreasonable to write to the head to suggest a more inclusive alternative?