Maybe true for a JAR licence, but not true for a UK PPL(A) who only flies microlights. One panel examiner for microlights flies on a UK PPL (A) with a NPPL medical, but also flies light aircraft on a NPPL (SSEA) to save on the PPL medical!
Very true.
Should have said "National Licenses" rather than NPPL when it comes to Microlights.
Regards,
DFC