Adults hold on to dead relationships out of inertia. Children let go of "marriages" over a cracker and feel no shame about it. They know that the world will not end if the romance fails, because there is another potential "spouse" on the swing set who has a really good ball.
Children are world-class observers. They pick up on the vibe of romance without understanding the why . You’ll see them "playing house," where they mimic the tone of their parents—sometimes with unsettling accuracy. Small children sex 3gp videos on peperonity.com