Why don't humans have wings

This reminds me of that other thing where that one guy said " if humans had wings, none of us would fly because we'd consider it exercise "
Also, if we had wings they'd be more like bat wings because we wouldn't have feathers.

Because Maximum Ride

I read that as 'Man Humans', as in the male species of human, and I was all, 'What about Woman Humans?', but then I realised what it meant...