Ok, I did post same question to a group of cycling women. Now keep in mind, there's a large group of women who are over 40 in this group. Here are some stories and ideas which show there is such a thing as becoming too stupidly stubborn when driving beyond one's own capabilities:

http://forums.teamestrogen.com/showthread.php?t=28987

Most of these ladies are partially out of 100% driving mode, because they do some cycling at least.
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