I’m not all that sure it would. Age 65 was in part a gift to major airline pilots who were screwed out of their retirement programs by bankruptcy AND the age 65 mandatory retirement age. By retiring at 60, they came under the early retirement provisions of the Pension Benefit Guarantee folks, which gave them a lesser retirement than others with similar incomes whose pension programs had been terminated.

https://www.aviationpros.com/home/ne...exdelta-pilots

Once these individuals aged out of the system, the average airline retirement age started coming DOWN because fewer if those who had adequate time to build up their 401k felt the need to work into their mid 60s even though the money was good since being retired with money is only a plus if you live long enough to enjoy it.

The same would apply to an age 67 limit. Not all pilots will want to wait that long and even among the fraction that does not all of those pilits pilots will be medically capable. Nor does it take someone to be incapacitated to the point that they cannot actually fly. Someone requiring a cardiac stent or graft, for example, will require 3-6 months before his/her waiver will even be considered by the FAA. Even a totally waiverable problem - like type 2 diabetes or non-metastatic prostate cancer - may eat up so much time in processing that it just isn’t worth it and medical retirement is just simpler.

The upcoming pilot shortage was a totally predictable event, but it was a long lead time problem. What was needed was to start wirking on it a decade ago when it was already obvious there would be massive numbers retiring in a short time frame. That wasn’t done and it’s too late now - at least too late to keep experience levels up to historical norms.