If schools do have to close, then come on folks, you need to lobby your MP about support for your family by your workplace.
Schools are adapting at short notice ( DfE I'm looking at you with your testing guidance sent at 18:28 on the last Thursday of term), to provide learning to children, to provide food and vouchers, to put systems in place to support contact with vulnerable families, to try and be flexible to offer (if at all possible and by no means in all cases) some flexibility for vulnerable staff or those with children. Head teachers are covering three hour lunch duties everyday, school staff are taking no breaks whatsoever, LA staff are working all hours including, with school staff volunteering to support vulnerable families.
Schools cannot do all of this alone and without any funding. Surely businesses can be more creative and flexible to support those of that work at home, split shifts, flexible working, weekends, financial support. Schools are taking the brunt of the expectation to be flexible, to learn new remote teaching skills, to redesign the curriculum, to put in testing and vouchers and... What are your workplaces doing to support?
Didn't the furlough scheme initially have a clause for furlough if you needed to be at home for child care. Does it still?
MP's need to be made aware of your issues and need to work with business to insist on them meeting family needs. Schools are doing their best, they can't do this alone.