number will be like your social security number or national insurance number. Normally 16 digits long. If you go into a hospital they will be able to see your medical records, if you go into a shop they will be able to see if you have credit, if you go into a police station they will be able to see if you have a criminal record and if you go for a job interview they will be able to see your CV and qualifications. If you haven’t had your vaccinations you will be arrested. Thanks …