You didn't read those, did you? The one in Florida was to remove some restrictions for 16 & 17 year olds. I agree that the person who filed it seems to have done so in bad faith. Stating that removing some employment restrictions because the kid's parents "know best" is a green light for abuse by employers. However, the bill failed in the senate.
The West Virginia bill which will likely become law soon is to apply the same standards to 14 & 15 year old employment as is available in many states already. It does not remove a prohibition on total work hours allowed at that age or the type of work allowed. It just removes the "work permit" process. The work permit was formality that helped nothing.
Federal law still exists and is not violated. My daughter is 14 and works 5 hours a week at an ice cream shop. It's been allowed in my state without a permit as long as I can remember. I myself worked in a pet store at that age.
I will fully agree that the Florida bill got too close to passage. Thankfully the Florida state senate killed it, but that doesn't mean it can't be abused in the future since 16 & 17 year olds have fewer federal protections than 14 & 15 year olds do. Federal law still prevents the hazardous employment for minors, and that won't change. Any state that passes such laws will be challenged in federal court. That would be terrible optics for the folks responsible.