[Foobar8568]

You had different certificates that were valid (check a "dictée" from a CEP at the end of primary school, I am not sure that many people would make less than 4 grammatical mistakes).

Now you have private certificates that employers start asking (voltaire certificate) and there will be similar in math.

Regarding Switzerland, check the subject and grading of ECR in Vaud https://www.vd.ch/themes/formation/scolarite-obligatoire/eva... and an 8P example https://www.vd.ch/fileadmin/user_upload/organisation/dfj/dge... it's at the end of the first year of middle school // 12years old. Considering the way of grading, my daughter would pass it at 7.