It's not clear if you're intentionally trying to conflate kindergartners, with all school children.
There's a lot of things in life that are not suitable for kindergartners, but are suitable and appropriate for other school age children, I believe driving trucks is one such thing in America. If your only argument against those things is "well its not appropriate for kindergarten" when the law is not only covering kindergarten, then it feels like you're confused about what this law you support says.
Maybe thats why you can't understand people's reactions to it?
There's a lot of things in life that are not suitable for kindergartners, but are suitable and appropriate for other school age children, I believe driving trucks is one such thing in America. If your only argument against those things is "well its not appropriate for kindergarten" when the law is not only covering kindergarten, then it feels like you're confused about what this law you support says.
Maybe thats why you can't understand people's reactions to it?