Japan had schools closed in the spring, but it had little or no effect on covid spread.
https://www.sciencedirect.com/science/article/pii/S1201971220305981
"Results
The intervention of school closure did not appear to decrease the incidence of coronavirus infection. If the effectiveness of school closure began on March 9, the mean coefficient α for the effectiveness of the measure was calculated to be 0.08 (95% confidence interval −0.36 to 0.65), and the actual reported cases were more than predicted, yet with a rather wide confidence interval. Sensitivity analyses using different dates also did not demonstrate the effectiveness of the school closure.
Discussion
School closure carried out in Japan did not show any mitigating effect on the transmission of novel coronavirus infection."
Schools have been back in session since September. Taiwan never closed their schools and have similar numbers.
Overall, the lockdown in Japan was only about a month in April. None of the recommendations carried the weight of law, and small businesses were not forced to shut down and become casualties (see the original video).
Mask or no mask, schools shut down or not, do not matter. Having a healthy, non-obese population, thanks in large part due to better diet (high in meat fish and eggs) and shaming against obesity (they are measured for visceral fat to stay within guidelines) is a far better defense against covid than having an obese, junk-addicted culture locked in their homes, gaining even more weight as they eat "comfort junk", can't go to the gym and stress out from losing their jobs.
All you racist Trump Derangement Syndrome Covidiots are in denial that he successfully fast-tracked not one but two of your precious vaccines, but never will in a million years give him credit. Not when Lockdown Joe is cowering in his basement and waiting to take credit.
Personally I could give a rat's arse about masks or vaccines, because I have addressed covid just like I do all infectious disease: have a 100% strong immune system (like Asian countries who have not succumbed to Western junk/seed oil diet, which excludes PRC, India, etc.) and then I *welcome* exposure, as a strong immune system needs to be challenged, just as a strong athlete needs to be challenged by appropriate stress in order to remain strong.
Covid is just a sideshow for the dismantling of the West, but it is a societal stress test that most western countries are failing due to their complete ignorance of biology and lack of simple personal discipline and critical thinking. Fortunately, I have made adjustments in my life that have made me stronger and more resilient/antifragile, unlike the Soy Latte Trolls that buzz about this place like perpetual sh#tflies, lol.