Has anyone's step children (or own children) been encouraged to take on an adult type role in their parents lives after they've separated?
It may be one reason why my step kids have stopped visiting weekends when they used to here every weekend for 6 years. DP said recently that their mother says that she needs them around as she gets lonely (her boyfriend lives a long way away). She did the opposite for many years when he BF was around.
I think that this also happened with my older DSD with DP. When I came along she'd started to call him at night if he wasn't back by a certain time (ie with me) - she was 19 then - she would parent the younger kids (much to their annoyance). Unfortunately it didn't stretch to doing the housework or her own laundry!