We need precautions, but we need to make them the least restrictive possible for the circumstances. Disciplining kids until you "correct" all desire to play or interact with peers out of them is not that, but it is what a lot of these reopening plans call for. Expecting kids as young as 5 to sit alone at isolated desks, potentially separated by makeshift 'walls' even from those sitting closest to them, from the time they get to school in the morning until they leave in the afternoon, isn't that. Returning to a new "core classes only" school model that offers no arts, no music, no sports isn't that.
We do need modifications. We need major changes to attendance policies and to social norms around sending kids who are "just a little sick" to school. We need longer lunch breaks so kids can actually wash their hands before they eat. We can and should do better with cleaning school facilities and promoting overall good hygiene. But the modifications we choose need to be designed with the well-being of the whole child in mind, not just virus prevention, and we cannot ignore the "invisible" costs of the dramatic changes being proposed (whether the stress and anxiety caused by returning to school in a format just as isolating as being at home, or the hunger created by the suspension of school food service and cafeteria use, or the loss of vital enrichment programs, or the inferior services rendered to special needs students when trying to administer them without close interpersonal contact).
A big part of the problem I have with the guidelines being released right now is that they're so much stricter than the guidelines being applied to society at large. Small groups can get together at a restaurant without distancing, but teachers are being told to keep their students 6' apart at all times without any group or team work. Playgrounds, parks, beaches and pools are open but schools are being told recess is too dangerous and kids shouldn't be allowed to play with one another. Malls are open, but schools can't allow students to pass one another in the hallways. I get that the impulse is almost always (well, except when it comes to guns) to protect kids at any cost but I think the guidelines we're seeing right now go so far overboard that they're creating a needlessly traumatic school experience for fall that won't be effective educationally or socially.