with out all the graphics that can trigger someone children go through what here in the USA is called pre puberty. where early blooming girls and boys bodies prepare for being teen agers. some develop physically in their bathing suit areas the same way as a pre teen and teen ager does with the same identical physical problems that have to be dealt with. not to mention this age grouping is also the experimental show me yours Ill show you mine, lets play house like mommy and daddy and other sexualized normal play children sometimes do.

most parenting classes and department of human services, treatment providers in the USA say\teach the usual age of separating gendered children into their own rooms and having a boys room and a girls room, teach knocking before entering, good touch bad touch, each persons body is their own for only their self ...that kind of stuff in preschool , 5 years old at the latest, simply so as to avoid future problems that can occur with 6-10 year olds boys and girls entering pre puberty stages.