The appeal lies with their contrasting personalities. The Embittered, jaded old soldier being drawn out of his shell by the peppy, young, hopeful just tickles Me pink. That, and the thought of a younger women lusting after an older man's Dick is incredibly hot.
It may not have as much weight behind it as other ships like Superman and Lois, or Dipper and Pacifica, but it has enough to work considering that this isn't Overwatch we're talking about, a setting plagued by Blizzard's Schlocky writing and starved for good character interaction. It's why Fujoshits and Yurifags have been able to get such a strong fold in their, considering that their requirement for a ship is the lack of material to contradict them.>not even that good-looking
I'm sorry, I didn't realize I was in the presence of such misguided taste.