Part FCL, especially FCL.065 b) makes it currently impossible to fly as a pilot beyond age 65 in europe in commercial air transport. It doesn't make it impossible to earn a living though as outside commercial air transport one can use the privileges of the FCL license unlimited. That legislation cannot be changed with local law at this time short of leaving the EU, which of course is always possible. But even for countries not within the EU it is binding if they want to participate in the european market, like switzerland for example.
Even more restricting is the rule however that you may only fly from 60 to 64 in a multicrew flightdeck, which is especially bad for those colleagues who are flying in exactly that environment, like for example all those rescue helicopter pilots who will be out of a job when the opt-out period is over.