Be aware though that you could only fly domestically in the UK, not to or over France for instance.
I've no interest in flying beyond 65, but I ask a question of the legality of this statement. I remember the argument over the 60 age limit some years ago. France and other EU countries tried to impose the 60 limit when others used 65. This led to overfly problems. That was resolved and EU came 65. The argument was based on a perceived safety issue. That was JAR. Now it's EASA, and law not recommendations. Now, the EU has an age discrimination policy for all countries. I think the safety issue for +65's is still perceived, not proven. Thus, is it legal for any country to impose a 65 limit? If there is no proven data to uphold thus policy is it not therefore non-compliance of EU law, unless there are dispensations for certain industries.