This explains why the honour system doesn’t do as much as one might hope, but it doesn’t address the initial question of why use explicitly optional vaccination instead of mandatory + honour system. If excluding the unvaccinated is desirable then surely it remains desirable (if subtoptimal) to exclude only those who are both unvaccinated and honest.
This explains why the honour system doesn’t do as much as one might hope, but it doesn’t address the initial question of why use explicitly optional vaccination instead of mandatory + honour system. If excluding the unvaccinated is desirable then surely it remains desirable (if subtoptimal) to exclude only those who are both unvaccinated and honest.