Factor in all the early COVID retirements, all the people who run into medical issues in their 60s and all the others who don’t want to work past 65…. And you aren’t left with too many people.

Also, it wouldn’t fix the problem. Most pilots that old are at Majors or Legacy airlines.

The shortage is regional captains and LCA.

The only thing that would possibly put a dent in the problem is if you created a “Restricted 1st Class” medical allowing people older then 65 to still fly part 121 in aircraft with less than 80 seats (or something like that).