Ahhh MRB, a very timely topic personally.....
I'm almost 34, no kids. I have a doc's appt. in a couple of weeks to discuss the very same issue. I have discussed it with other women my age, my mother, my aunt, co-workers, etc. I get these type of responses, "you may change your mind, blah, blah, blah." The only people that support my decision are my mother and aunt. They both feel that "some people just aren't meant for children and that's a decision you have to make, and we'll support you." I might add, since my 20's I've had very strong feelings on this subject.
I don't believe a physician should make the choice for a woman by denying this particular procedure. I certainly believe providing information/counseling is acceptable, but outright denying a procedure...nah, that doesn't sit right, especially if a spouse agrees to the procedure. I'll let you know if I find the same challenge.