Yes, and this is a problem for the US military. Over the past few years, there has been a push to open up jobs to women that were previously closed. The problem is that women have always been provided a lower set of standards to adhere to than men, in order to enable more women to be in the military. This is fine if you are sitting at a desk, but it isn't fine if you have to carry a 60lb backpack on a 10 mile hike. So, recognizing reality, the standards are leveled and as a result, women fail.