The main reason yellow paint in game design became a thing is because Unreal Engine makes everything a mushy grey mess and it's otherwise hard as fuck to keep track of where you are going or what you are looking at.
Public schools, on top of costing taxpayers a bloody fortune, are worse than useless. For the only kids that matter, simply providing them a library card and free bus rides to the library would produce massively superior educational outcomes. Schools, as they exist today, are nothing more than a prison-like social experiment.