Large groups of 14 kids in a classroom 6 feet apart and wearing masks is more dangerous than 16 kids in a dugout with no spacing and no masks?
Schools have hundreds or thousands of people in them and most rooms have poor ventilation. Also, if you think that rooms will only have 14 kids in them I have some beach front property in Nevada to sell you. There are only so many teachers and there was a major teacher shortage before all of this. Good luck finding the personel, the funds, and the space to hire the extra teachers trying to keep class sizes to 14 will require.