In a name

I was thinking if my friend, Emily Lefren-Brown, married my former Shakespeare Professor, Andrew Borthwick-Leslie, and they hyphenated their last names their kids' last names would be Lefren-Brown-Borthwick-Leslie. Or perhaps they could alternate Lefren-Borthwick-Brown-Leslie. Or alaphabetical Borthwick-Brown-Lefren-Leslie. Well, you get it.
I don't know that married people with children need to take the male's last name, but I think the married couple planning on children should settle on one last name. Even if it's a brand new last name. In three generations monogrammars might be out of business. And then their falls the economy.