In cambridge UK, a lot of the students including men ride retro ladies bikes. Bonus style points go for original wicker baskets. It's the only place that I've been to where young men riding these bikes is accepted as perfectly normal, let alone that they wouldn't get things thrown at them.

I don't ride this bike myself, but I appreciate a place that doesn't judge you for doing this. Speaking of which has anyone seen the guy around boston with the sideways pedalling bike?