Because she is shy and only plays with girls even in Co-ed. And I have seen her in a SS group sports class which she does much better than in a co-ed class. (She is not a big fan of group sports)

@Anonymous Obviously you know your DD best. From a VERY outside perspective, it might be good for DD to spend a few years with boys, at least until MS or even HS, and then switch her. If socializing with boys isn't in her comfort zone then it will be good life skill to practice/get used to. You can always look to move for MS or HS when hormones come into play and can cause classroom distractions. Personally, I think SS is a big plus in HS, but good to get some experience making friends with the opposite sex in the earlier years. (just my VERY outside opinion)

@Anonymous Thank you so much! Very valuable opinions. She does have an older brother so she gets "boy experience". But I guess interacting with boy peers is a different story..

I don't see why you would. You might consider talking it over with the administration of your co-ed before they get a school report (we have been torturing ourselves since we really love co-ed school, but we're wondering if a ss environment might be better for dd. we have just been around and around struggling with this, and finally decided to apply so that DD could at least have a play date experience to see what she thinks about it). I don't see that it would have long term effects if you said in the end, DD decided she likes her friends better here or it turns out we didn't like it as much as we thought, etc.