It is a tricky one, for sure.

My old Darwin mummies group was pretty flexible (same thing happended, some returned to wrok after 12 months etc) but it was majority rules.

Now I'm in Adelaide my mummies group (only 4 of us) can ONLY meet on a Tues......it is the only day we can coordinate due to work/kindy/committmets etc, so again, majority rules through lack of choice!