[kinoxi]

Exactly. The only sex education they should have at that age is that boys(girls) have cooties.

Or that they use different bathrooms. This is kindergarten.

[metmom]

When I was in grade school, back in the Dark Ages, I recall the classrooms had a little bathroom in the back of the room. One at a time, no major disruptions if a kid had to go and no accidents in a real emergency, well usually.