An argument against closing lower schools (*not* universities)

This is interesting.  Universities serve an older population than schoolchildren, but one that is more likely than the younger kids to both get and transmit COVID-19.  (If that's incorrect, I welcome links in the comments.)  The article also makes the point that to actually be effective in stopping an epidemic, schools would have to be closed for months.  So far no one is talking about that, at least not that I've seen.