Agree with SDTG, 'Miss' has never had a childish connotation to me. I was always brought up that this was what you were known as if you weren't married. I don't feel that calling myself 'Miss' over 40 is childish. I had teachers in their 50's & 60's who were 'Miss', as single women (& one who was married but chose to retain her maiden name professionally) & I never thought that strange either.
AnnieLobeseder - I accept your points but not allowing people to know something so they can't judge it is not tackling the problem. Surely legislation should be there to protect people from discrimination on the basis of anything rather than encourage them to hide much about themselves in case someone else chooses to judge them harshly? I agree that there should be equality, and DP agreed with me when I discussed it with him that it is more of a problem that men don't have a choice. After all, 'Ms' was brought in relatively recently to give women choice to use a title that revealed their marital status or not. Why did no-one think of giving men that choice also?
It's about giving people freedom & choice rather than impelling people to not express who they fully are in an official capacity as they choose. Personally, I think men should have more choice of title. If the argument is about forms being unnecessarily complicated, then we should also remove the right of Profs, Drs, Lords etc to use theirs and stick to Mr & Ms. But that's a lot of rights taken away from a lot of people. Here in Norway, titles aren't used at all & there is no real Norwegian equivalent of Mr, Mrs, Ms or Miss. If it's an issue of forms perhaps the choice should be 'enter a title' or 'leave title box blank'? Or just ask for a first name, surname & gender?