Well, here's one who specifically wanted the mixte frame on my Trek hybrid (Navigator 200). That's the bike I use for going out to eat and church, among other things, and sometimes I like to wear a skirt.

But it's not pink, it's maroon, the exact same color as DH's diamond-frame Navigator 100.

Back in the day I used to ride a diamond frame bike in dresses all the time, but it had to be a pretty full skirt, and it was awkward regardless.