Why are you concerned about what other riders are wearing? Unless as in my case you're following a chick in a summer dress, flip flops, sunnies, earphones and a helmet in the basket (literally - that's not a euphemism for anything at all you understand) then let folks get on with it - the more gear the better when you're kissing the tarmac.
Chips in a basket - nice idea - kind of scampi in a basket without the scampi - for those of you who recall those oval shaped red plastic mock wicker receptacles so beloved of early gastro pubs circa 1970's
Why are you concerned about what other riders are wearing? Unless as in my case you're following a chick in a summer dress, flip flops, sunnies, earphones and a helmet in the basket (literally - that's not a euphemism for anything at all you understand) then let folks get on with it - the more gear the better when you're kissing the tarmac.