Most Helpful Guys
It's kind of a win-win. The guys feels like a protecter and the girl feels safe and protected.
I think the biggest hurdle for guys when thinking about a tall gorl is that almost every girl wants a guy taller than her, and guys want to be attractive to the woman. It doesn't feel great to feel unattractive even if they themselves don't care about her height, and that's bound to turn many guys off1
Most Helpful Girl
I think most guys date girls either out of insecurity or just preference. I also think some people look goofy being tall or short and others don't.1