I thought the OP was referring to questions asked by non-cyclists, not by budding cyclists or people otherwise genuinely interested.
I don't think I've ever been asked point-blank why cyclists wear so much lycra, but I've certainly heard lycra ridiculed a million times in anti-cyclist posts. It never fails - any article writing anything at all about cycling, whether it's positive or negative, about commuting or racing or little old ladies, will get a rash of comments saying something like "what the bleepitybleep do they think they're doing out there anyway, wagging their fat fannies in multicoloured shiny condom suits* "
*the epithet of choice in Norwegian
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett