CAA fees
If we want to make PPL issues cheaper, then why not delegate the printing to FEs? They already let AMEs issue medicals directly and MOs can give you an ARC, so why not?
While I'm on the subject why can an examiner renew a class rating that's expired up to 5 years for free, but go any longer and somebody at Gatwick has to enter which rating it is, two dates and their authorisation, which attracts their usual hefty fee.