often on really daft bikes for commuting.
this is funny, are they riding bikes with one wheel or no chain?
lots of people couldn’t give a toss about what type of bike they are riding, they just buy one and ride it to work, sometimes in the rain sometimes not. They probably can’t be bothered fitting mudguards and don’t really care if they get wet. I’d say most peoples commute is probably less than 10 miles each way so not a great length of time on the bike either.
I commute in bike gear and shower at work, I did have mud guards on the mtb when i used that for commuting but have just bought a road bike and haven’t bother fitting guards yet and probably won’t ths year now, I might do for next winter though.