I'm not gonna speculate about whether its biological or something to do with how 19 year old men ca 2006 had been socialized up to that point. All I'm saying is that it happened dozens of times, and it was never a woman who pushed that door open.
You already gave an explanation before that had nothing to do with any difference in gendered behavior (it was next to the men's locker room), which makes it even more baffling that you're now suggesting that no, it really was because men were less capable of not opening the door.