If after 40 years you expected the NHS to become less bureaucratic for your convenience... Well, what did you expect after 40 years exposure to NHS bureaucracy?
A lot of this stuff is about protecting the vulnerable. So everyone gets firetraining, because this reduces the odds that someone will prop open a fire door or block an escape route. Relevant if working in a village hall where boxes of vaccines and consent forms are being lugged in and out, and where frail patients will be attending.
Child protection is there because of a number of high profile cases, where kids died in essence because each of the clinicians who saw them decided, "Those bruises are a bit funny... nahhh, that's the paediatrician/the GP/the consultant's responsibility." So EVERYONE gets child protection training, which basically is "Yes, it is your responsibility, these are the things to look out for, and this is how to get help if you're worried". Preventing radicalisation is similar except it's teenagers and vulnerable adults, largely, who are at risk. Everyone has to have it precisely so noone thinks it isn't their problem.
As others have said, if you already know the material then click through the assessment and done. I do this stuff every year. It takes me two hours, max. Or don't. But expecting the NHS to change is unrealistic.