Different schools seem to be following different procedures regarding catching the virus. Why aren't schools following uniformly stringent procedures?

For example, another school is taking all students' temperatures upon arrival each day, while my children's school is not doing this and yet it would seem a much more prudent practice.

A:

Daily temperature checks are not part of the recommended COVID-secure measures for schools. Public Health England has good evidence that routinely taking the temperature of pupils is an unreliable method for identifying COVID-19. It also may provide a false sense of security.