Although (intellectually) you know that there's no reason why if this guy or that guy can do it, you can't - there's something somewhat sobering and potentially disheartening about almost everyone being "different" than you.
I do lots of activities where everyone is "different" than me in some way.
I work in fashion, though I definitely stand out from the typical fashion crowd. (Most people who meet me assume I'm a tradesman of some sort.) At my company I'm an ethnic minority of one. I'm also an ethnic minority at my primary hobby.
In my experience, it's mainly women who think "omfg, everyone is different from me, what'll I do?" Men just think "those people are doing cool things, I'd like to be like them."