Dont you think those two statements are a tad extreme. Kids are not "immune" to the virus: they can catch it and pass it on just like other people. However the health impact upon them is far less. For teachers the risk is there but it is actually quite small. There are areas of the country where the infection rate is very, very low so there will be many schools that will not be at any risk: going to supermarkets with parents probably is as risky to the kids and teachers.
Your last paragraph is again somewhat extreme "life or death" really: the vast majority of deaths are to the elderly and fat who have underlying medical conditions. Medical staff are well trained and know how the equip themselves. We also know that avoiding the viral load is very important to the severity of any resulting illness.
The 'viral load' is also important when you consider how exposed the average person is during normal external situations; few occassions of general public's interactions will be beyond the 10 to 15 minutes.
The situation is serious and need managing carefully but, if we're honest, the public on-mass can be pretty unintelligent and I think the statistics tend to become interpreted at the extremes: the risk of contracting it is low and the risk of dying is much, much lower. That said no-one would willing expose anyone if it is reasonably possible to prevent it.
Aren't we now playing with semantics for the sake of splitting a few hairs. You know what I'm trying to get across, just as I know where you're coming from. But to use your point of the public being unintelligent, doesn't the message have to be, er very blunt to get that message across in a language they understand.
Seriously, I'm not arguing with the thread of what you're saying, and I do think we're on different parts of the same page. However, you acknowledge the teachers are more in the at risk age demographic but seem to be willing to accept them as collateral damage based on the probability of a % of the age group, not their age itself.
Maybe I'm missing something there. let's just agree we're on different parts of the page. Besides, my brandy infused chicken and mixed herbs stew is ready.