ElephantsAndMiasmas - where have I said that women should mark their marital status through their name? I am happy for you to have your choice of title, but I don't think you believe I should have the same choice.
I cannot help but feel that, in pursuit of the right to be called Ms, some people feel it is alright to sacrifice my opinion and wish to be called Mrs - I haven't signed up to be anyone's sacrificial lamb. Campaign for the inclusion of Ms as an option wherever Miss/Mrs are options, and I will be behind you 100%, but try telling me I should give up my personal choice of title, just so that you don't have to express a choice, and then we have an issue.
The suffragettes chained themselves to railings, went to prison for their beliefs, even sacrificed their lives in the fight for the vote. They didn't take other women, who maybe weren't so interested in getting the vote and chain them to railings, or push them under racehorses - an extreme example, I know, but it feels like my feelings and opinions don't matter a hoot here, and can be sacrificed for the Greater Good.
Thistledew - when I worked as a nurse, a lot of older patients would have been very offended if I had called them by their first names without being given their permission. They grew up in an age when you showed it would have been very disrespectful to call someone older than you, or in authority, or someone you didn't know/hadn't been introduced to, by their first name. Out of respect for this and for them, I called them by their chosen title and surname - titles mattered, and still matter to them - and I think their opinions and feelings are worthy of respect here.