The certificate is there to protect the normal worker from exploitation
and to enable the handicapped to maintain their pension whilst earning
some additional money but more importantly to make it worthwile getting
out of bed in the morning.
It gives a feeling of satisfaction in doing some real work, just like
their brother or sister might be doing, off to work each morning.

Hermit I know that you just do not understand, as you would not be
able to be writing and arguing here if you were handicapped.

Bazz

"I know that you just do not understand, as you would not be
able to be writing and arguing here if you were handicapped."

How on earth have you arrived at this bizarre, illogical conclusion? Not all metal problems are related to cognitive disability. Posting comments here is nothing like filling government questionnaires (But you won't find many comments from me over the years I have been OLO subscriber). As I said. You have no comprehension of what you are talking about.

So how do you know what I know about this matter ?

Bazz

"I know that you just do not understand, as you would not be
able to be writing and arguing here if you were handicapped."

That sentence says it quite clearly.