Why? Catherine of Sienna's vocation was rejected by her family. As were those of many other saints/martyrs. It seems to me that a 'true vocation' is more likely to be one that has been resisted. At least the people who talk about resisting the call but following in the end speak to me more.

But then my opinion isn't really relevant as I'm an atheist - I just still find these discussions interesting.

Looking back at my catholic upbringing, I'm amazed I never noticed the doublethink inherent in the constant assertion of the importance of authority while also feeding us full of stories about men and women who did good through resisting authority.