To make our class I medicals "robust," so as to at least make this age 67 discussion feasible, the FAA needs to make them like how other countries administer them. I have double nationality, and for a few years worked for a small airline. These medicals were no joke! Yearly chest X Rays, hearing test, blood drawn, dental check, a motor skills challenge where this gizmo would beep loudly if you went outside the lines, yearly EKG (any age) plus a bi annual psychological evaluation and bi annual probes attached to the noggin. This was performed at the Aviation Authority's building with their own staff, and needles to say took hours. But at least you came out of it feeling like you were indeed healthy.
And the best part, flight attendants needed a yearly medical as well. Of course, nowhere near as grueling as ours. As you can imagine, way less geriatrics.
With something like this implemented here, I don't think the 60-65 would have ever happened, but I digress.