Allow me to opine; I so attest. I served in the Army, many years ago, when the Armed Forces initiated changes in physical training and testing of soldiers (for the more equitable treatment of women.)
Once upon a time, the whole purpose of Basic Training for soldiers was to take a mass of normal young men, subject them to a rigorous physical routine, and punch out as many quality militia men, within 8 weeks, as possible. One of the many tests of these new soldiers' abilities was the PT exam which consisted of the Inverted crawl, the Run-dodge-and-jump, the Horizontal ladder, Sit ups, and 2 mile run. If you took 100 typical, High School Seniors (men) and put them through the training regimen, the easily reached goal was to pass 85, or more, into combat service. In time of War, spitting out quality troops is essential.
Why, then, was this training and the rigorous PT exam eliminated? Because the women couldn't do it with anything approaching the men's success rate. Out of 100 women High School Seniors, maybe 5 could pass the test after training. The numbers didn't justify the expense and time for the amount of final product.
In the final analysis, the politicians reasoned that the problem lay in the training and testing, not in the conclusion that the women were too far away from soldierly expectations as to be impractical to mainstream with the men.