It is true that there are no statutes ruling what age you can leave your child home alone in Missouri, but that does not mean you can't get in big trouble if you're not careful. The question and answer of what decides if a child in Missouri is safe by themselves at home is complicated.
Of course, not every experience is seeing a loud concert in the theater surrounded by other music nerds dancing to specific choreography while you all sing loudly, "YOU CAN'T STOP ME LOVING MYSELF" at the top of your lungs.
Something they can enjoy for a day or two, but won't get too precious about if it "goes missing" in the trash come Monday (Wink Wink) or if the kid loses it in the car or at school.
And I bet it would be just kind of a let down to go door to door to door and see your friends or other kids get to enjoy whatever they want however they want, and you just can't.