oh yes. and not just high-end places, it*s a random bonus feature that can turn up anywhere

as jib71 and ninja138 have said, it does save water as it stymies a real need [for some] to flush in order to mask their body*s propensity to call attention to itself. and who knows how many trees and human-hours unblocking toilets are saved as only a light layer of paper might be used to lessen splashbacks rather than an excessively heavy layer to dampen those tell-tale noises of impact [the commonly used western equivalent to electronic flushing sounds ].