Well actually it's probably a bit early to be thinking about this as my twins (B/G) are only 3, but I've been wondering whether when they do start school if they should be in the same class or not. The school they will go to is fairly flexible I think, and I am not aware of a rigid policy regarding this.
They are close, and are together all the time at the moment, but they are not glued together iykwim and will happily play with others when the opportunity arises (ie preschool, which they started in Sep) Until recently I always envisaged them in the same class for some reason, but I can see some advantages to being separated when I stop and think about it. I was wondering if any MN teachers/ mums of twins or grown up twins have any thoughts or experiences about this.