A while back, a Crossair flight to Nice was boarded by the authorities (at NCE) and the Captain was found to be over 60. There must have been denunciation to alert the authorities I think. The flight was not allowed to leave until a substitute was flown in.
EZY have Captains over 60 but are careful to put them only on non French routings (Scotland, AMS, ATH and BEL). EZS in GVA have to retire their Capts. at 60 cos ex GVA you have to overfly French airspace, wherever you go.
So not everyone is toeing the line here it seems.
What interested me is that the rule should be changing - but I am not sure of my source.