The real reason behind such a move is the culture of litigation in the US. Someone made your coffee too hot? Sue them. Someone stepped on your toe? Sue them. In this case, everyone is ducking for cover because they don't want to be the focus of a lawsuit that claims they didn't do anything to prevent the spread of the disease. The people who make these decisions at MIT are not unintelligent. They have all the resources and risk models at their disposal. They have obviously found that the financial risk to the school is greater if they don't send all the students away vs if they do.
I don't necessarily disagree with your overall sentiment here, but I always feel the need to point out that this is a really bad example of a frivolous lawsuit. That lady's car didn't have cupholders, which was pretty common on '90s cars, and the coffee was hot enough to fuse her labia together. You can look up pictures; it wasn't pretty. She also only sued for medical damages and nothing more, if I remember correctly.
"Sixteen countries have shut schools nationwide, impacting almost 363.1 million children and youth. A further sixteen countries have implemented localized school closures to prevent or contain the spread of COVID-19."
That’s quite a nice sentiment. Unfortunately, “flattening the curve” is not what propels the world to action. People getting what they want is. It always has been, and that’s not changing for Covid-19.