For a long time now people have wished for London Underground to replace its moquette with plastic seats, seemingly with the mistaken belief that fabric seats are unhygienic, because other railways (primarily in the USA and elsewhere in Europe but also in Oriental countries). These miss many facts that make LU different, in that most trains are met by turnaround cleaners at the ends of the lines and arrangements can also be made for them to be met by cleaners or staff at other points should an issue be reported part way through a trip, most stations have visible staff to whom issues with train cleanliness can be reported, and that trains will be withdrawn from service en-route if they cannot be cleaned or an area continually monitored by staff.