Maybe it would help, or maybe it would do the opposite. Having an HSA and seeing prices upfront can also make one not go to doctor because they do not want to drain their HSA. This can cause people to skip preventative care steps and to not nip potential problems in the bud before they get bad (and expensive). A lot of diseases/conditions are much cheaper to cure/fix if you catch them early, so maybe you don't want to incentivize people to stay away from the doctor.