What's with the "be a man" crap? How about we just show good character, male or female, young or old.
FWIW, hard shots hit at my feet are extremely difficult to call. Unless my partner calls it out, I just play it.
If I see one of my shots clearly wide (there's no way I can call a ball on the opposite baseline) and my opponent doesn't call/see it, I concede the point. I would hope that everyone does this, and in my experience, most do.