An employee who has caregiving or family responsibilities should be accommodated to the point of undue hardship, which might include staying home. These caregiving responsibilities which relate to the human rights legislation ground of family status could include situations where another family member is ill or in self-isolation, or where their child’s school or daycare is closed due to COVID-19.
That said, employees need to act reasonably with respect to how they manage their parental and caregiving responsibilities. Employees are expected to explore all reasonable options that would allow them to keep working, like placing their kids with family member etc. An employer does not necessarily have to accommodate an employee’s preference.
Where these options are really not available, employers likely do need to accommodate employees with childcare issues. If work from home is feasible, that could be a form of accommodation. However, if the employee needs time off to deal with school or daycare closures, employers do not need to pay employees who are not working.