The only valid solution is governments that offer something like OIDC providers using your ID card. You yourself can create a token that verifies that you are y

The only valid solution is governments that offer something like OIDC providers using your ID card. You yourself can create a token that verifies that you are you and additionally there can be manual checking if the ID card matches you. This way a platform also does not need to handle any sensitive data. A ticket provider would have to allow reassigning tickets to other people through their platform - make it a "maximum 3 people for automatic approval".