So people would send their kids to school, even though it wouldn't be safe, so they can both work.
Aw, poor kids and what a society.
Define ‘safe’.
We all put our children in risk situations every day. The risk from the virus to children is extremely low; schools are also modelled to be much lower than eg workplaces and public transport at spreading the virus and contributing to deaths (SAGE advice, Danish govt, etc.)
We have a choice about this particular risk - either isolating our children for what may be years, or returning them to school at a time when transmission has dropped to a much lower level and current restrictions can start to lift with a focus on rest and trace.
I am not willing to do the health and psychological damage of keeping my children at home and isolated from other children and from parks, sports and playgrounds for the potentially very long period until a vaccine is available. That’s entirely without the practical implications for me.
In much the same way, I let my children travel in cars despite risk, ride bikes, many many things. I mitigate the risks sensibly to minimise them as far as practical, while still living our lives.