Anonymous wrote:5yo's aren't expected to fully read and write when they walk into K.
True. I'm not sure where OP read that. OP you can look up the curriculum standards by grade for MCPS. They are all published online. Nothing about reading and writing when they walk in the door of K.
Most schools are highly integrated. There are some pockets of most white and Asian, but that's Bethesda Potomac area. Don't live there. For true integration, look at Rockville, Gaithersburg, Germantown, much of Silver Spring.