The Washington Post has the story:
Missouri Republicans block proposed ban on kids carrying guns in public By Timothy Bella
"The Republican-controlled Missouri House of Representatives rejected a proposal Wednesday that would have banned children from being able to openly carry firearms on public land without adult supervision.
"The proposal, which was part of a long debate in the chamber on how to fight crime in St. Louis, was soundly defeated by a vote of 104-39, with just one Republican voting in support of the ban.
...
"Since 2017, Missouri residents have not been required to have a permit for concealed carry, after lawmakers in the Missouri House voted to override a veto by then-Gov. Jay Nixon (D) of a broad gun-rights bill. The law does not require gun owners to take safety training or have a criminal-background check to carry concealed firearms in most public places. The move was celebrated by Republicans, but law enforcement officials warned that the law was “going to make officers a lot more apprehensive,” St. Louis Public Radio reported at the time.
"The proposal’s defeat this week comes almost a month after Missouri Republicans in the state House made news for a voting to tighten the dress code for women legislators, while leaving the men’s dress code alone. Missouri House Republicans sought to require women to wear a blazer when in the chamber. The state House eventually approved a modified version of the proposal, which allows for cardigans as well as jackets but still requires women’s arms to be concealed."