how about to add a command /family , like /marry, for people can adapt other one's surname? a confirmation window of course should pop up on the one's screen who first had that surname.
that command of course shouldnt be that obvious as the current marriage-icon! maybe make it a commandline-command only.
creating a family with each one having a unique surname is not that fancy and atmospheric, and did already for some "odd" ic explanation.
if that suggestion already was made, just delete this post. thanks.