Children can be a vector for this disease, even if they don't get sick - and your simplistic "grandparents are sequestered" does not cover every situation. In my neighborhood, a woman lives with her daughter, son-in-law and grandchildren. Another older couple who live alone require regular, hands-on assistance from their adult children, who just happen to live with their own kids. A girlfriend is due with twins any day now, and she'll have to rely on her parents to look after her 3-year-old for some period of time; her father is at particular risk if he gets infected.
And yes, people have to go to work - so lowering the risk of those people getting sick by limiting the opportunity for kids to make them sick seems like a good idea to me.
Watch are the chances of transfer via food? Science says - not happening:
That’s because it’s a respiratory virus, passed primarily from person to person in droplets when someone who is infected coughs or sneezes. Though it’s possible to pick up the virus by touching a surface where the droplets have landed and then touching your eyes, nose, or mouth, that’s not the primary way it is thought to spread, according to the Centers for Disease Control and Prevention.
The CDC, the Food and Drug Administration, the Department of Agriculture, and the World Health Organization say that food is not known to be a route of transmission of the virus. And the information available from outbreaks of SARS and MERS, caused by coronaviruses similar to the one that causes COVID-19, is reassuring. According to the WHO, the evidence showed that those illnesses were not transmitted by food.
Exactly. So, what are they doing - shutting down the likelihood of people gathering unnecessarily in groups and becoming disease vectors - such as kids in playgrounds. Not shutting down grocery stores, but taking precautions as best they can because people need to eat.
This looks very much like an attempt to balance what's needed against what's not needed. Yes, kids can't go to playgrounds, but at least they get to eat.
It seems the balance you expect involves either no limitation on people, or complete lockdown. That's not actually balance; that's the weird conservative attitude that we must choose one of two extremes.
This situation is really hard on everyone, and we all wish things were different, leaders had done better somehow and that we weren't looking forward to months of staying home and the economic fallout that is coming. But why do so many conservatives have to be so stupid about it? Deal with it like adults, for God's sake. Blame, accusation, whining or offering "older people" as sacrifices to capitalism is just dumb.