While anyone thinks like Toga, or fewer men than women change their name, I couldn't do it.
Anyway, not married, not getting married, if I was we would have our own names , and DC hyphenated , like now.
LOL at double barreled being pretentious. In our inner city S London primary huge numbers of kids had hyphenated second names, all due to C21st attitudes amongst women, parents not married etc. NONE of them remotely posh or wannabe.