Because you are not required to have a medical to fly gliders.
If the shoe does not fit you can not convict.

Allan


"Paul Lynch" wrote in message
news:7M7zc.900$Jk5.689@lakeread02...
It is simpler than that. If the FAA defines some 15 or 16 disqualifying
conditions that they do not waive for pilots requiring a medical than how
can you argue you have the incredible wisdom and insight that you are safe
to fly if you have one of those conditions?? By your logic anyone can
self-certify no matter what their condition simply because they believe
they
are safe to fly.