Bifurcation is a very good climb for children. Short approach up Balance Rock Trail, plenty of holds, leans in slightly, and moderate exposure. The lower slabby face to the right is also a lot of fun for the kids to play around on.
If you don't want to set a toprope up high one could solo up to the chockstone for an easy TR.
My daughter Zoe (I'm proud to say) did great on it.