Asking your twice Tour winning, famous husband to go against cultural norms and take your last name instead is peak 2024 narcissism, IMO. They could have both kept their own last names if she wanted to buck the patriarchy. But the east stage racer of the current age, and owner of the greatest climbing season of the modern era, IMO, deserves to keep his last name if anyone does.
Ultimately, for continuity, only one last name gets passed down. My wife’s parents gave her a hyphenated last name, combining their two names so no one was treated as “less than,” but as
@CyclistAbi says, to keep both again would mean we would have 3 names (her two plus mine all strung together with hyphens) and our kids would then have to mash together with someone else’s names. Some in the states get around this conundrum by truly combining last names, creating a new name, but then you are completely casting aside all ties to any ancestors. Even as a progressive democrat, I’m too traditional and value my roots too much for that.