How though? Isn't onus on the ones making the original claim.
Original claim was, "schools need to be shut down because they will increase covid spread"
Person making the claim needs to comeup with "the evidence" not the other way around.
Anyone with children will tell you that school is a major disease vector. It's common sense and basic medical knowledge. Putting a bunch of people together spreads disease, especially when they're a bunch of children with dubious hygiene habits.
Person making the claim needs to comeup with "the evidence" not the other way around.