>Is she never going to carry ID? I guess she win't be driving, joining a club, getting a job or leaving the country.
>All of these require carrying a numbered card which she refuses to do.
Generally you're right, but we're talking about Texas in this case.
Texas may be a little more liberty-loving than most places.
Consider Michael Badnarik, Libertarian Party candidate for president in 2004 and also a Texas citizen.
In his book(1), he claims that by consistently refusing to _have_ any government ID, much less carry one,
he can and does legally drive without licensing his car or himself. He also claims that this interpretation
has been tested in Texas court in the 1940s.
Perhaps the other things you mention would still require an ID in Texas, though I've heard that crossing
the Texas-Mexico border without ID happens a lot. :-)
(1) "Good to Be King: The Foundation of our Constitutional Freedom" ISBN 1-59411-096-4